HomeMy WebLinkAboutCOUNCIL - AGENDA ITEM - 09/07/2010 - ITEMS RELATING TO THE ADOPTION OF THE 2009 INTERNA DATE: September 7, 2010 SUMMARYAGENDA ITEM
STAFF: Steve Dush _
Mike Gebo
T COLLINS CITY COUNCIL
Items Relating to the Adoption of the 2009 International Codes with Amendments.
A.. First Reading of Ordinance No. 098, 2010,Amending Chapter 5,Article II, Division 2, of the City Code for the
Purpose of Repealing the 2006 International Building Code(IBC)and Adopting the 2009 International Building
Code, with Amendments.
B. First Reading of Ordinance No. 099, 2010,Amending Chapter 5,Article Il, Division 2, of the City Code for the
Purpose of Repealing the 2006 International Energy Conservation Code and Adopting the 2009 International
Energy Conservation Code (IECC), with Amendments.
C. First Reading of Ordinance No. 100, 2010, Amending Chapter 5,Article II, Division 2, of the City Code for the
Purpose of Repealing the 2003 International Residential Code (IRC), and Adopting the 2009 International
Residential Code, with Amendments.
D. First Reading of Ordinance No. 101, 2010, Amending Chapter 5, Article IV of the City Code for the Purpose
of Repealing the 2003 International Mechanical Code,and'Adopting the 2009 International Mechanical Code,
with Amendments.
E. First Reading of Ordinance No.102, 2010, Amending Chapter 5, Article IV of the City Code for the Purpose
of Repealing the 2003 International Fuel Gas Code and Adopting the 2009 International Fuel Gas Code,with
Amendments.
EXECUTIVE SUMMARY
The 2009 International Codes(2009I-Codes)represent the most up-to-date,comprehensive,and fully integrated body
of codes regulating building construction and systems using prescriptive and performance-related provisions. The
purpose of these Codes is to establish the minimum construction requirements to safeguard the public health, safety
and general welfare by regulating structural strength and stability,sanitation, light and ventilation,energy conservation,
and property protection from hazards attributed to the built environment within the City of Fort Collins.
BACKGROUND I DISCUSSION
Since 1924, the City of Fort Collins has periodically reviewed, amended, and adopted the latest nationally recognized
building standards available for the times.The City has updated the minimum construction standards twelve(12)times
since 1924. The 2009 International Codes will replace the 2006 International Building Code (IBC) and the 2006
International Energy Conservation Code (IECC) adopted in July 2008, as well as the 2003 International Residential
Code (IRC), 2003 International Mechanical Code (IMC), and 2003 International Fuel Gas Code (IFGC), which were
adopted in January 2005.
Today, building codes and standards are reviewed and voted on by code officials and construction industry
professionals from across the country and published every three years under the oversight of the International Code
Council(ICC). The five core 2009 I-Codes represent the latest construction publications from ICC.
Throughout most of the past year a Code Review Committee representing a wide spectrum of volunteers from across
the local construction industry including private developers, builders, architects, engineers and building officials from
neighboring jurisdictions, studied the 2009 I-Codes. The Code Review Committee compared the currently adopted
building codes and amendments against the significant changes of the 2009 I-Codes and numerous proposed
changes at the local level. The Review Committee offered a unanimous recommendation to Council that the 2009 (-
Codes move forward for adoption.
DATE: September 7, 2010
AGENDA ITEM SUMMARY •
STAFF: Steve Dush Mike Gebo • _ COLLINS •
UNCIL
Items Relating to the Adoption of the 2009 International Codes with Amendments.
A.. First Reading of Ordinance No. 098,2010,Amending Chapter 5,Article II, Division 2,of the City Code for the
Purpose of Repealing the 20061nternational Building Code(IBC)and Adopting the 20091nternational Building
Code, with Amendments.
B. First Reading of Ordinance No. 099, 2010,Amending Chapter 5,Article 11, Division 2,of the City Code for the
Purpose of Repealing the 2003 International Energy Conservation Code and Adopting the 2009 International
Energy Conservation Code (IECC), with Amendments.
C. First Reading of Ordinance No. 100, 2010,Amending Chapter 5,Article II, Division 2, of the City Code for the
Purpose of Repealing the 2003 International Residential Code (IRC), and Adopting the 2009 International
Residential Code, with Amendments.
D. First Reading of Ordinance No. 101, 2010, Amending Chapter 5, Article IV of the City Code for the Purpose
of Repealing the 2003 International Mechanical Code,and Adopting the 2009 International Mechanical Code,
with Amendments.
E. First Reading of Ordinance No.102, 2010, Amending Chapter 5, Article IV of the City Code for the Purpose
of Repealing the 2003 International Fuel Gas Code and Adopting the 2009 International Fuel Gas Code,with
Amendments.
EXECUTIVE SUMMARY
The 2009 International Codes(2009I-Codes)representthe most up-to-date,comprehensive,and fully integrated body
of codes regulating building construction and systems using prescriptive and performance-related provisions. The
purpose of these Codes is to establish the minimum construction requirements to safeguard the public health, safety
and general welfare by regulating structural strength and stability,sanitation,light and ventilation,energy conservation,
and property protection from hazards attributed to the built environment within the City of Fort Collins.
BACKGROUND / DISCUSSION
Since 1924, the City of Fort Collins has periodically reviewed, amended, and adopted the latest nationally recognized
building standards available forthe times.The City has updated the minimum construction standards twelve(12)times
since 1924. The 2009 International Codes will replace the 2006 International Building Code (IBC) and the 2006
International Energy Conservation Code (IECC) adopted in July 2008, as well as the 2003 International Residential
Code (IRC), 2003 International Mechanical Code (IMC), and 2003 International Fuel Gas Code (IFGC), which were
adopted in January 2005.
Today, building codes and standards are reviewed and voted on by code officials and construction industry
professionals from across the country and published every three years under the oversight of the International Code
Council(ICC). The five core 2009 I-Codes represent the latest construction publications from ICC.
Throughout most of the past year a Code Review Committee representing a wide spectrum of volunteers from across
the local construction industry including private developers, builders, architects, engineers and building officials from
neighboring jurisdictions, studied the 2009 I-Codes. The Code Review Committee compared the currently adopted
building codes and amendments against the significant changes of the 2009 I-Codes and numerous proposed
changes at the local level. The Review Committee offered a unanimous recommendation to Council that the 2009 1-
Codes move forward for adoption.
September 7, 2010 -2- ITEM 18
The 2009 I-Codes were then presented to the public through open house meetings and presentations to several
boards and commissions.Feedback to staff indicated support for the 2009I-Codes and recommended moving forward
for adoption.
Council Review Process
At the July 13, 2010 City Council work session, staff presented Council with an overview of the 2009 I-Codes
addressing each of the significant changes to the five core building codes. All relevant background information and
minutes from various boards and commissions and public out-reach efforts were included as attachments to the work
session agenda.
Staff identified the two most significant changes in the 2009 I-Codes as;
1. The energy efficiency improvements to residential construction (which Council agreed to move forward for
adoption citing the acceptable cost to benefit analysis presented) and,
2. The fire-suppression systems in new single family homes, proposed to become effective January 1, 2013
(which garnered most of the Council's concerns and questions).
Council's direction to staff, outlined in the work session summary (Attachment 1), was to;
1. Proceed in bringing the I-Codes forward for adoption in the September 2010 time frame,
2. Present a list of local amendment deletions or additions and to explain why an item was deleted or added
(Attachments 2 and 3) and,
3. To provide additional cost/benefit information for further discussion of the single-family fire-suppression
systems.
Subsequently,at its regular meeting on July 20, 2010, Council advised the City Manager to direct staff to remove the
residential fire-suppression requirements of the 2009 IRC when the ordinance was scheduled to be considered on
September 7,2010.This discussion was effectively an extension of the Council's July 13,2010 work session regarding
this topic. The sense was that the requirement is premature as there are still unresolved issues around licensing,
training (who can install, qualifications, type of system) and costs versus benefits. Given this direction, staff ceased
all further work on the fire-suppression issue including the work session summary item requesting additional
cost/benefit information.
The 2009 IRC Section R313 was amended by deleting the requirement that fire-suppression systems shall be installed
in new townhomes and single family dwellings. Section R313 was further amended to clarify that should a fire-
suppression system be installed, it shall be designed in accordance with the National Fire Prevention Association
(NFPA) NFPA-13, NFPA-13R or the IRC P2904 suppression systems.
Best Practice Approach
The adoption of new building codes is always an important topic for Fort Collins and surrounding jurisdictions. The
implementation of new building standards can have a dramatic impact on the construction industry and the economy
of the community. In order to better understand these impacts, the review process used in Fort Collins is considered
the "best practice approach"which invites input from many individuals from across the community, the construction
industry and surrounding jurisdictions.While this review process requires considerable time and resources,it produces
enforceable and effective building codes and amendments that the community and construction industry support and
create together.
The Code review process that Fort Collins used for the 2009 I-Codes resulted in numerous deletions to the local
amendments, such as amendments for insignificant word changes and for items now found in the body of the codes
and deemed to be no longer needed(Attachment 2).Additionally,the Code Review Committee found important items
that were not addressed in the Codes and added them as local amendments (Attachment 3).
Smallerjurisdictions that are unable to expend the resources needed foran in-depth code review priorto their adoption
of the latest codes,can and do look to Fort Collins'results and periodically incorporate Fort Collins'changes into their
local amendments. Building services staff are often contacted by jurisdictions requesting input on issues such as
radon reduction systems, fire containment versus fire-suppression systems, and residential energy codes. It is Fort
September 7, 2010 -3- ITEM 18
Collins' approach to building code adoption and enforcement practices that establishes Fort Collins as a leader in
Northern Colorado.
FINANCIAL / ECONOMIC IMPACTS
Financial Impacts
Alterations to,or new construction of City owned properties will have to comply with the provisions of the 2009 I-Codes.
The scope of work to be performed will determine the financial impact to the City. In general, there are no citywide
financial impacts expected with the adoption of the 2009 I-Codes.
Community Development and Neighborhood Services(CDNS)anticipates the following financial impacts and expects
these cost to be absorbed into the current CDNS budget:
1. Purchase of new building codes, approximately$3,500.The necessary copies of the five core 2009 I-Codes
have been purchased for staff.
2. Staff training on the new Codes is mostly accomplished in-house. When possible staff will attend Code
classes that are offered at various times throughout the year. This additional training cost is expected not to
exceed $5,000.
3. Contractor training on the new Codes and amendments. The City's contractor licensing ordinance stipulates
that contractors are to be trained on new adopted Codes. Staff generally offers a class on amendments and
charges an enrollment fee sufficient to cover the cost of expenses.
Economic Impacts
The 2009I-Codes are minimum building standards applicable to all remodel and new construction work.The economic
health of Fort Collins, in part, is related to the overall economic health of the construction industry, locally and
nationally.The 2009]-Codes are not expected to impact the construction industry,job creation or retention,or general
revenue circulation, to an extent that would affect Fort Collins' economic health.
The work of the Code Review Committee, along with the extensive out-reach efforts to solicit participation and feed-
back from the boards and commissions and the general public have produced an effective partnership between the
City and the community resulting in support for the new Codes.
ENVIRONMENTAL IMPACTS
The 2009 I-Codes are developed to safeguard the public health, safety and general welfare by regulating structural
strength and stability, sanitation, light and ventilation, energy conservation, and property protection.
Of the five core building Codes being adopted,the 2009 International Energy Conservation Code(IECC)is expected
to have a positive Environmental Impact by improving the energy efficiency of the current energy codes by
approximately 15 percent.
Compliance with the 2009 IECC in both residential and commercial projects, through increased insulation values will
not only improve indoor customer comfort levels but supports the City's Internal Sustainability Goal#2: Reduce City
energy consumption by 20 percent of the 2005 baseline by 2020, and reduce demand peak use by 15 percent by
2020.
STAFF RECOMMENDATION
Staff recommends adoption of the Ordinances on First Reading.
September 7, 2010 -4- ITEM 18
BOARD / COMMISSION RECOMMENDATION
The 2009 I-Codes were presented to various Boards and Commissions. There was general support fort he adoption
of the proposed Codes and all comments and minutes were included in the July 13, 2010 work session agenda item
summary (AIS).
Council's decision on July 20, 2010 to remove the residential fire-suppression system item from the 2009 IRC was
forwarded for comments to:
Code Review Committee,
Affordable Housing Board,
Commission on Disability,
Air Quality Advisory Board,
Natural Resources Advisory Board,
Building Review Board,
Fort Collins Board of Realtors,
Electric Board,
Landmark Preservation Commission,
Water Board
No additional board or commission comments were received.
PUBLIC OUTREACH
Extensive but-reach was conducted prior to the July 13, 2010 Council Work Session.
Council's decision on July 20, 2010 to remove the residential fire-suppression system item from the 2009 IRC was
forwarded for comments. No additional comments were received.
ATTACHMENTS
1. July 13, 2010, Council Work Session Summary memo
2. Local amendments deleted as a result of the 2009 I-Codes
3. Local amendments added as a result of the 2009 I-Codes
4. PowerPoint presentation
Planning, Development & Transportation Services
CityOf Community Development&Neighborhood Services
t 281 North College Avenue
®ie t Collins P.O. Box580
Fort Collins,CO 80522.0580
970.416.2740
970.224.6134-fax
fcgov.com
Memorandum ATTACHMENT 1
Date: July 14, 2010
To: Mayor and City Councilmembers
Through: Darin Atteberry, City Manager
Diane Jones, Deputy City Manager
Karen Cumbo, Interim Director PDT
Steve Dush, Director CDNS
From: Mike Gebo, Building Official
Re: July 13, 2010 Work Session Summary- 2009 International Codes
Deputy City Manager Diane Jones introduced the subject for discussion as the 2009 International
Codes (I-Codes) proposed for adoption. Councilmembers present: Hutchinson, Roy, Poppaw,
Manvel, Troxell, Kottwitz and Ohlson. Gebo presented an overview of the 2009 I-Codes
specifically, the Building (IBC), Residential (IRC), Mechanical (IMC), Fuel Gas (IFGC), and the
Energy (IECC). A general question and answer discussion followed.
The two most significant code changes were identified as the upgrades required to residential
energy efficiency in the IRC and IECC and the new IRC requirement regarding the installation
of a fire-suppression system in new single-family homes effective January 1, 2013.
Council directed staff to:
1. Proceed with the proposed timeframe for adoption of the 2009 I-Code in September.
2. Provide lists of:
a. Current amendment items which were deleted in the proposed amendments and
why deleted.
b. New amendments proposed and not included in the code.
3. In regards to the residential fire-suppression system item:
a. Change fire-suppression amendment to read as "effective date no sooner than
January 1, 2013"
b. Provide PFA and local statistics, cost to benefit and effectiveness of fire-
suppression systems in new homes.
c. Re-survey the code review committee and public sector regarding the fire-_
suppression item.
d. Provide general information on fire-suppression systems such as; pipes freezing,
system leaks, basic operation and maintenance.
e. Provide costs comparison/savings associated with installation of fire-suppression
systems, including construction trade-offs, insurance savings, property loss
savings.
f. Provide implementation options such as; delete the requirement, delay the
effective date further out, re-evaluate the issue and present to Council prior to
January 1, 2013, review again when the 2012 IRC is published.
i
ATTACHMENT 2
Local Amendments Deleted
2009 I-Code Adoption
Residential
2003 International Residential Code (IRC)
Amendment Deleted Reason for Deletion
1 Scoping provisions Terminology in 09 IRC adequate
2 Four separate references to various codes or standards One reference only needed to direct reader to IBC
3 Definition of building official Terminology in 09 IRC adequate
4 Time limit on applications expire after 90 days Revert back to code and 180 days before applications expire
5 Five separate references to fees, how paid and refunds One reference only needed-to direct reader to IBC
6 Four separate references to Building Review Board process One reference only needed to direct reader to IBC
7 Seven specific definitions I Terminology in 09 IRC adequate or not used
8 Light and ventilation requirements in adjoining rooms Terminology in 09 IRC adequate (supplement to 2003)
9 Sunroom and solarium glazing requirements Terminology in 09 IRC adequate (supplement to 2003)
10 Dwelling heating systems shall be permanent Terminology in 09 IRC adequate
11 Fire rating of wall separating garage to dwelling Terminology same in 09 IRC
12 Egress windows not required in small 200 sq ft basements Terminology same in 09 IRC
13 Deleted the word "exterior" from balcony attachment criteria Term not needed
14 Spiral stairways can serve only 400 sq ft Unnecessary and limiting, Spirals can only be used within a
dwelling unit
15 Deleted term "vertically" from handrail measurement criteria Term not needed
16 Specific smoke detector locations with ceilings of. differing Terminology in 09 IRC adequate
heights
17 Fiberglass insulation installed on basement walls had to be Allowing the use of blanket encased fiberglass insulation
framed in and protected from damage without framing walls
18 Five separate references to fire wall parapet construction Terminology in 09 IRC adequate (supplement to 2003) Y
19 Moisture control within dwellings Terminology in 09 IRC adequate -3
20 Three separate references to construction in flood zone One reference only needed to direct reader to IBC y
21 Minimum depth of foundations Terminology in 09 IRC adequate n
22 Short walls anchored to foundation criteria Terminology in 09 IRC adequate (supplement to 2003) x
z
y
N
1
23 Retaining wall engineered design criteria Now addressed as required unless exempt from permit
24 Foundation damp-proofing criteria Terminology in 09 IRC adequate
25 Four separate references to under floor ventilation criteria Terminology in 09 IRC adequate
26 Four separate references to under floor clearances to framing One reference only addressing clearance as determined by the
engineer of record and the expansive soils present
27 Reinforcement details for concrete slabs As determined by the engineer of record
28 Drilling and notching of wood studs criteria Terminology in 09 IRC adequate supplement to 2003)
29 Window to wall flashing details Terminology in 09 IRC adequate (supplement to 2003)
30 Second floor windows with opening within 24 inches of floor Terminology in 09 IRC adequate (supplement to 2003)
require fall protection
31 Horizontal installation of gypsum wallboard criteria Terminology in 09 IRC adequate (supplement to 2003)
32 Backer material specified for tub tile work Terminology in 09 IRC adequate(supplement to 2003)
33 Two separate references to weather resistance of exterior walls Terminology in 09 IRC adequate
34 Roof tie-down connections Terminology in 09 IRC adequate (supplement to 2003)
35 Roof covering attachment criteria Terminology in 09 IRC adequate
36 Chapter 11 Energy, removes 23 pages of amendments IRC Chapter 11 (residential) is duplication of the 09 Energy
code and removes confusion
37 Mechanical chapter, flood resistant controls Not needed, duplicate reference to City Code, already
addressed in IRC Chapter 1
38 Ground clearance for mechanical equipment Terminology in 09 IRC adequate (supplement to 2003)
39 Appliance work space for service Terminology in 09 IRC adequate
40 Three separate references to duct construction and sealing Terminology in 09 IRC adequate
41 Flood hazard reference re: ductwork installation Duplicate reference to City Code, already addressed in IRC
Chapter 1
42 Two separate definitions re: fuel gas piping Terminology in 09 IRC adequate
43 Flood hazard reference re: gas piping installation Duplicate reference to City Code, already addressed in IRC
Chapter 1
44 Chimney lining criteria when'replacing appliances Terminology in 09 IRC adequate
45 Two amendments for commercial grade cooking appliances in Must be residential rating, improves safety to children as
dwellings allowed if clearance to combustibles is maintained. commercial appliances use higher temperatures
2
Commercial
2006 International Building Code (IBC)
Amendment Deleted Reason for Deletion
1 Three separate permit exemptions Terminology in 09 IBC adequate
2 Application extension policy of 90 per extension Terminology in 09 IBC adequate at 180 days
3 Definition of`Building Code Official" Terminology in 091BC adequate
4 Definition of"story above grade plane" Terminology in 09 IBC adequate
5 Two exceptions to clarification of an assembly occupancy Terminology in 091BC adequate
6 Fifteen separate sections re: live work units Supplement to the 2006 IBC now included in 2009 IBC
7 Calculations for determining basic allowed area of multi-story Terminology in 09 IBC adequate
buildings
8 Allowable area of windows in an exterior wall required to be Supplement to the 2006 IBC now included in 2009 IBC
fire-rated (Table 704.8)
9 Two sections defining "primary and "secondary" Supplement to the 2006 IBC now included in 2009 IBC
structural components
10 Eight sections addressing `spray applied fire-proofing materials" Supplement to the 2006 IBC now included in 2009 IBC
11 Fire rating of windows in an exterior wall required to be Supplement to the 2006 IBC now included in 2009 IBC
fire-rated (Table 715.5)
12 Four sections addressing location and installation of fire and Supplement to the 2006 IBC now included in 2009 IBC
smoke dampers
13 Six sections addressing approved fire blocking materials Supplement to the 20061BC now included in 2009 IBC
14 Two sections addressing clearance around and protection of fire Supplement to the 2006 IBC now included in 20091BC
department hose connections to buildings
15 Seven sections addressing installation of fire pumps for fire- Supplement to the 2006 IBC now included in 2009 IBC
suppression systems
16 Four sections addressing emergency responder safety features Supplement to the 20061BC now included in 2009 IBC
17 Definition of"flight" as in flight of stairs Supplement to the 2006 IBC now included in 2009 IBC
18 Section on electromagnetically controlled locking devices Supplement to the 20061BC now included in 2009 IBC
19 Three sections handrail graspability Supplement to the 2006 IBC now included in 2009 IBC
20 Twelve sections on hospital patient suites Supplement to the 2006 IBC now included in 2009 IBC
21 Section on stairway signage requirements Supplement to the 2006 IBC now included in 2009 IBC
22 Eleven sections on high rise buildings stairway markings Su plement to the 2006 IBC now included in 20091BC
3
23 Six sections addressing courtroom accessibility criteria Supplement to the 2006 IBC now included in 2009 IBC
24 Ten sections addressing ventilation requirements of crawlspaces Terminology in 091BC adequate
25 Two sections establishing energy design criteria Not needed, IBC energy chapter directs the reader to the 2009
International Energy Conservation Code, where design criteria
is detailed.
26 Two sections on roof drainage requirements Supplement to the 2006 IBC now included in 2009 IBC
27 Requirements for design of rooftop gardens Supplement to the 2006 IBC now included in 2009 IBC
28 Five sections addressing treated wood materials and appropriate Supplement to the 2006 IBC now included in 2009 IBC
connectors based on the treatment products used
29 Two sections addressing radio towers Supplement to the 2006 IBC now included in 2009 IBC
4
ATTACHMENT 3
New Local Amendments Added
2009 I-Code Adoption
Residential
2009 International Residential Code (IRC)
Amendment Added Reason for Addition
1 Short retaining walls; no permit required if minimum horizontal Addresses the problem of multiple non permitted retaining
distance to next uphill retaining wall is maintained. walls too close together
2 Decorative ponds which can not contain water more than Ponds deeper than 24 inches will require permits and will
24 inches deep, no permit required. require protective barriers
3 Fire-suppressions systems installed in dwellings shall be Fire-sprinklers are not required but if installed must be
designed in accordance with NFPA or IRC. installed in accordance with an approved system
4 Dwelling units separation walls to be 2-hour fire-rated without Will assure that proper fire-rating is constructed if
Fire-suppression systems residential fire-suppression is not installed
5 Three separate exceptions for less fire-rated construction when Construction trade off for fire-suppression systems with better
one of the approved fire-suppressions systems installed. overall floor coverage
6 Reduces the ceiling height of below grade rooms to less than Addresses the issue of basement finishes in older homes where
required in above grade rooms. ceiling height can be problematic
7 Roofing drip edge flashing Improves water shedding and protects roof sheathing.
8 Dryer exhaust length increased to 35 feet Consistent with dryer exhaust length in the IMC for multi-
family.
Y
y
y
y
n
x
r�
z
W
1
Commercial
2009 International Building Code (IBC)
Amendment Added Reason for Addition
1 References to the electric code and plumbing code as per City automatically updates to State mandated codes.
adopted by the State of Colorado
2 Short retaining walls; no permit required if minimum horizontal Addresses the problem of multiple non permitted retaining
distance to next uphill retaining wall is maintained. walls too close together
3 Permits required for decorative fish ponds deeper than Permit would fag requirement for protective barriers
24 inches in residential projects around the ponds
4 Premise address number and permit number must be displayed To assist inspectors and emergency responders looking for a
and visible from street during construction property under construction when permanent addressing is not
yet installed
5 Transfer of permits to new owner and required documentation No direction or policy provided in the 09 IBC
6 Definitions of"dwelling" and "dwelling unit" Consistency with the Land Use Code and the IRC amendments
7 One exception to `live work units" that allows an office area of IBC set office limits at 10%.
up to 20% of the floor area without being considered a live
work unit
8 Three sections addressing carbon monoxide detectors required Not addressed in the 09 IBC
in new and remodeled dwelling units
9 Accessibility elements to be designed in accordance with the Clarifies that the building official establishes the most recently
latest published edition of ANSI Al 17.1 published accessibility standard to be used
10 One section that requires an engineer to design crawlspace Removes building services from designing moisture control
mechanical ventilation systems to reduce moisture problems systems
11 Two sections addressing roof flashing and weather protection Consistency with the same details found in the IRC but not
included in the IBC
2
Fort Collins City Council
Regular Meeting
September 7 , 2010
Adoption of the
2009 International Codes
Steve Dush , Director
ATTACHMENT 4
Michael Gebo , Chief Building Official
Community Development & Neighborhsee Services
ctY o
1
Subject
Ordinances with amendments relating to the
Adoption of the 2009 International Codes :
20091nternational Building Code
20091nternational Residential Code
2009 International Mechanical Code
2009 International Fuel Gas Code
2009 International Energy Conservation Code
2
�tr�
2009 I -Codes will replace
2003 International Residential
2003 International Mechanical
2003 International Fuel Gas Codes
(Adopted January 2005 )
2006 International Building Code
2006 International Energy Conservation Code
(Adopted July 2008 )
C Yoe
3
�F�t
Purpose of Adoption
2009 International Codes
• Most up-to-date national building standards
published by the International Code Council ,
• Establish minimum requirements for all aspects of
construction ,
• Safeguard public health , safety and welfare ,
• Regulate structural strength , sanitation ,
ventilation , energy efficiency and property
protection .
Olt
try
Background
Council Work Session July 13 , 2010
• Reviewed the five core codes .
• Identified two significant changes as :
— Energy improvements in the IECC and IRC ,
— Residential fire-suppression systems ; IRC .
(Sprinkler systems requirement deleted from the 2009 IRC.)
Council Requested :
• Develop an amendments added list ( new items )
• Develop an amendments deleted lists .
C Yoe
5
�Ltf�
Background
Code Retest Practice "
• City leads the review process ,
• Include construction industry professionals :
— Developers and contractors ,
— Engineers and architects ,
— Fire departments and code officials .
• Allocate staff and resources needed ,
• Develop consensus and support ,
• Present to the community ,
• Support and provide associated training .
6
Olt
Impacts 1Wcipat
ik,
• Financial ,
— Minimum impact on City' s services , staff, and
resources .
• Economic ,
— No affect on the City' s economic health or
ability to create or retain jobs .
• Environmental ,
— Energy efficiency improvements supports
City' s goal of reducing energy consumption by
twenty percent by year 2020 .
Wi
7t.f�-
Benefits of 2009 I -Codes
• Improves energy efficiency in all construction ,
supporting City' s Internal Sustainability Goal .
• Helps maintain Fort Collins ' outstanding insurance
rating of 2 out of 10 .
• Aligns "core" codes under single edition year .
• Up-to-date standards as a base for future Green
Building Program .
s
Olt
Public Outre
• Affordable Housing Board May 6
• Commission on Disability May 13
• Air Quality Advisory Board May 17
• Natural Resource Advisory May 19
• Building Review Board May 27
• Board of Realtors June 1
• Electric Board June 2
• Landmark Preservation June 9
• Water Board June 17
• Open Public Meeting June 17
Foc '9
' tfl-
Next Steps After Adoption
• Notify licensed contractors of new codes and
effective date ,
• Establish training on codes and amendments with
building services staff,
• Print and make available amendments packages ,
• Update City' s Website link to new amendments ,
• Update permit tracking system to new codes ,
• Develop contractor licensing amendment exams ,
• Develop contractor/developer training seminars .
10
try
Staff Recommendation
Staff recommends adoption of the
2009 International Building Code
2009 International Residential Code
2009 International Mechanical Code
2009 International Fuel Gas Code
2009 International Energy Conservation Code
with amendments .
oty o
11
F:t
2009 I -Codes
Questions and discussion
Thank you for your time .
FF City
12
try
ORDINANCE NO . 0989 2010
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING CHAPTER 5 , ARTICLE 1I, DIVISION 2 , OF THE
CODE OF THE CITY OF FORT COLLINS FOR THE PURPOSE OF
REPEALING THE 2006INTERN4TIONAL BUILDING CODE (IBC) AND
ADOPTING THE 2009 INTERNATIONAL BUILDING CODE, WITH AMENDMENTS
WHEREAS , since 1924, the City has reviewed, amended and adopted the latest nationally
recognized building standards available for the times; and
WHEREAS , upon recommendation of City staff, the City Council has determined that it is in
the best interests of the City to align the five interconnected basic construction codes under one
publication year; and
WHEREAS , the five interconnected basic construction codes are the International Building
Code, International Residential Code, International Mechanical Code, International Fuel Gas Code,
and International Energy Conservation Code; and
WHEREAS , the City Council has determined that the 2009 publication year of the five
interconnected basic construction codes ought to be adopted and that their counterpart codes
previously adopted should be repealed both in order to align the publication years of the codes and
also because the 2009 publications contain improvements in construction code regulation; and
WHEREAS , City staff has conducted a significant public outreach program, working with
the regulated construction industry and building professionals ; and
WHEREAS , the adoption of the five interconnected basic construction codes has been
presented to and recommended by the Affordable Housing Board, the Commission on Disability, the
Air Quality Advisory Board, the Natural Resources Advisory Board, the Building Review Board, the
Electric Board, the Landmark Preservation Commission and the Water Board; and
WHEREAS , the Council of the City of Fort Collins has determined that it is in the best
interest of the health, safety and welfare of the City and its citizens that the 2006 International
Building Code, as amended be repealed and that in its place, the 2009 International Building Code
should be adopted, with amendments .
NOW, THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY OF FORT
COLLINS as follows :
Section 1 . That Section 5 -26(a) of the Code of the City of Fort Collins is hereby
amended to read as follows :
(a) Whore is
het!eb y adopted
opte by ve fefe ce as the building ing code of �L. o
1
C=�Pursuant to the power and authority conferred on the City Council by Section 31 - 16-
202 , C .R. S . and Article II, Section 7 of the Charter, the City Council hereby repeals the
2006 International Building Code (2006 IBC) , and adopts as the building code of the City
the 2009 International Building Code (2009 IBC) published by the International Code
Council (T�, as amended by the City, which shall have the same force and effect as
though set forth in full herein. The subject matter of the codes adopted herein
includes comprehensive provisions and standards regulating the erection, construction,
enlargement, alteration, repair, moving, removal, conversion, demolition, occupancy,
equipment, use, height, area and maintenance of buildings and structures exclusive of
detached one- and two-family dwellings and multiple single-family dwellings
(townhouses) not more than three (3 ) stories above grade and their accessory structures,
for the purpose of protecting the public health, safety and general welfare .
Section 2 . That Section 5 -27 of the Code of the City of Fort Collins is hereby repealed
and reenacted to read as follows :
Sec . 5-27. Amendments and deletions to code.
The 2009 INTERNATIONAL BUILDING CODE adopted herein is hereby amended
in the following respects :
(1) Section 101. 1 Title is hereby amended to read as :
"101 . 1 . Title. These regulations shall be known as the General Building Code of the City of
Fort Collins, hereinafter referred to as `this code ' . "
(2) Section 101. 4. 1 through 101. 4. 9 Referenced codes, is amended to read as follows :
" 101 .4. 1 Electrical. All references to the Electrical Code shall mean the electrical code
currently in effect as enacted by the State of Colorado .
101 .4.2 Gas. All references to the International Fuel Gas Code shall mean the fuel gas code
currently in effect as enacted by the City.
101 .4.3 Mechanical. All references to the International Mechanical Code shall mean the
mechanical code currently in effect as enacted by the City.
101 .4.4 Plumbing. All references to the International Plumbing Code shall mean the plumbing
code currently in effect as enacted by the State of Colorado .
101 .4.5 Property Maintenance. All references to the International Property Maintenance Code
shall mean the property maintenance code currently in effect as enacted by the City.
101 .4.6 Fire Prevention. All references to the International Fire Code shall mean the fire code
currently in effect as enacted by the City.
101 .4.7 Energy. All references to the International Energy Conservation Code shall mean the
energy code currently in effect as enacted by the City.
2
101 .4.8 Residential. All references to the International Residential Code shall mean the
residential code currently in effect as enacted by the City.
101 .4. 9 Areas prone to flooding. All references to ` flood hazard ' and ` areas prone to flooding '
in this code and appendices adopted therewith shall be as specified in the Code of the City,
"Chapter 10, Flood Prevention and Protection. "
(3) Section 103 Department of Building Safety is amended in its entirety to read as follows :
"SECTION 103 CODE ADMINISTRATION
" 103. 1 Entity charged with code administration . The Community Development and
Neighborhood Services Department as established by the Code of the City, is hereby charged
with the administration and enforcement of this code .
The building official, appointed by the City Manager, is charged with the direct overall
administration and enforcement of this code ; and, in the performance of said duties, may
delegate the necessary authority to the appropriate technical, administrative, and compliance
staff under the supervision the building official. "
(4) Section 105. 2 Work exempt from permits, items 1 , 4, 6 , 14, 15 , 16, 17 under the heading of,
Building, are amended to read as follows :
"Building .
1 . One-story detached accessory buildings used for playhouses, lawn and garden equipment
storage, tool storage and similar uses provided such buildings do not exceed 120 square
feet of floor area nor 8 feet in height, do not house flammable liquids in quantities
exceeding 10 gallons per building and are constructed entirely of noncombustible
materials when located less than 3 feet from an adjoining property line .
4. Retaining walls that are not over 4 feet ( 1219 mm) in height measured from the low side
grade to the top of the wall provided the horizontal distance to the next uphill retaining
wall is at least equal to the total height of the lower retaining wall, unless supporting a
surcharge or impounding Class I, II or IIIA liquids .
6 . Platforms and decks intended for human occupancy or walking, sidewalks and driveways
not more than 30 inches (762 mm) above adjacent grade, and not over any basement
window or story below and are not part of an accessible route.
14. Roofing repair or replacement work not exceeding one square of covering per building.
3
15 . Minor work valued at less than $ 500 and not involving alteration of bearing walls,
structural or fire-rated assemblies, plumbing, electrical or mechanical components or
fire-extinguishing systems .
16 . Window replacement requiring no structural alteration and when such work is
determined not to be historically significant or affecting a building more than 50 years
old, storm window, storm door and rain gutter installation.
17 . Decorative ponds , fountains and pools which cannot contain water more than 24 inches
(610 mm) deep. "
(5) Delete all headings and references under Electrical, Gas, Mechanical, Plumbing.
7(i leetrien •
Repairs nnd maintenanee ! Minef repair- work, iiieluding the r-eplaeoffient of lamps or-
CO flection of approved portable eleetfical equipment to approved pefmanently insta
reeep�fle es
but de apply to equi ment
a*d wir-ing for- a power- supply and the installa4ions of towers and antei+nas .
Temporary testing systemsi A 19e.F.M. 4 shall fiat be r-equifed faf the installation of-my
tempor-ar-y system r-equifed for- the testing or- sefvicing of electrieal equipment oF apparatus .
a-s
1 . Poftahle heating
appl • anee
Meehanienli
1 . Portable heating
appliance
'l Portable ventilation
equipment
4 . Steam, hot or- ehilled wa4er- piping within any h ling equipffient r-egulated-lay
this code
5 . Deplaeemept of afty part that Ton not
alter its
app foyal or make . t unsa �e
61 DA.rtahle eyapAratiye reeler
actuated
by vpotora of 1 horsepower- (746 W) or lean
water,1 . The stopping of leaks i.n. dfains , soil, waste of vent pipe, provided, however,
tha
4
this code .
2 . The eleafing of stoppages of the-, Af leaks in pipes, valves or fixtufes and the
(6) Section 105. 5 Expiration is hereby amended by adding a second paragraph to read as follows :
"Both prior to and subsequent to the effective date of this code, any work authorized by a permit
regulated by this code, or under any other building construction code administered by the
building official, that involves the construction or alteration of an exterior building component,
assembly or finish material, such as the foundation, wall and roof framing, sheathing, siding,
fenestration, and roof covering, shall be fully completed for permanent outdoor exposure within
24 months of the date of issuance of such permit, regardless of when the permit was issued.
Failure to comply with the foregoing time period shall constitute a violation of this code,
resulting in revocation of the permit, and shall subject the permit holder and property owner to
all penalties provided by the Code of the City. "
(7) Section 105. 8 Premises Identification is added to read as follows :
" 105.8 Premises Identification. The approved permit number and street address number shall
be displayed and be plainly visible and legible from the public street or road fronting the
property on which any new building is being constructed. "
(8) Section 105. 9 Transfer of permits, is added to read as follows :
" 105.9 Transfer of permits . A current valid building permit may be transferred from one party to
another upon written application to the building official. When any changes are made to the original
plans and specifications that substantially differ from the plans submitted with the permit, as
determined by the building official, a new plan review fee shall be paid as calculated in accordance
with Section 109 . A fee of $ 50 shall be paid to cover administrative costs for all building permit
transfers . No change shall be made in the expiration date of the original permit. "
(9) Section 107. 2. 5. 2 Information for construction in areas prone to flooding is hereby amended
by adding the following to read as :
107. 2 .5 . 2 Information for construction in areas prone to flooding. "For buildings or
structures regulated under the scope of this code that are in whole or in part located in flood
hazard areas, construction documents shall be submitted as established in accordance with the
Code of the City, Chapter 10, Flood Prevention and Protection. "
(10) Section 107. 3. 1 Approval of construction documents, is hereby amended to read as ;
5
107.3. 1 Approval of construction documents. When the building official issues a permit, the
construction documents shall be approved in writing or by a stamp . w-hiEh states "D EVIENVED
FOR CODE COMPLIANCE. " One set of construction documents so reviewed shall be
retained by the building official. The other set shall be returned to the applicant, shall be kept
at the site of work and shall be open to inspection by the building official or his or her
authorized representative.
(11) Section 108 Temporary Structures and Uses is deleted in its entirety.
SECTION 148
TTi MPOR A R V STRUCTURES S AND USES
108. 1 General. The building effieial is authef-ized to issue a pefmit for- temper-afy s4uetufes
and temporary uses . Such peFmits shall be limited as to time of ser-viee, but shall H
Pe itted
strength,
safety, means of egress, aeoessibilivy, light,
108.3 Temporary power. The building official is authorized to . i x ion to tempofafi4y
temporary certificate shall comply with the r-equir-ements specified for tempor-afy lightifig-, heat
for a temporary st-fuctufe of! use and to order- the ter.n.,por-ar-y stfuctufe oF use to be discontinued.
(12) Section 109, FEES, is hereby amended in its entirety to read as follows :
"SECTION 109 FEES
109. 1 Payment of fees. No permit with any amendments and related construction plans therefor
shall be valid until the fees prescribed by the City Manager pursuant to Chapter 7 . 5 , ARTICLE I
of the Code of the City, entitled, ADMINISTRATIVE FEES , have been paid.
109.2 Related fees . The payment of the fee for the construction, alteration, removal or
demolition for work done in connection with or concurrently with the work authorized by a
6
building permit shall not relieve the applicant or holder of the permit from the payment of other
fees that are prescribed by law.
109.3 Fee refunds . Any fee paid hereunder that is erroneously paid or collected shall be
refunded. The building official may authorize the refunding of 90 percent of a plan review fee or
building permit fee to the applicant who paid such fee provided the plan review is withdrawn or
cancelled and the plan review and/or work authorized under a permit issued in accordance with
this code has not commenced; and further provided that such plan review or permit is valid and
not expired as set forth in Section 105 . 5 . Prior to authorizing the refunding of any fee paid to the
original applicant or permitee, a written request from such party must be submitted to the City
within 180 days of the date of the fee payment."
(13) Section 113, Board of Appeals, is hereby amended in its entirety to read as follows :
"SECTION 113 BOARD OF APPEALS
113 . 1 General. The Building Review Board (hereafter 'Board") as established in Section 2-
117 of the Code of the City is hereby empowered in accordance with the procedures set forth in
this section to hear and to decide appeals of orders, decisions, or determinations made by the
building official relative to the application and interpretation of this code; to the suitability of
alternative materials or alternative methods of construction; and the granting of permit
extensions and reinstatements as prescribed by Section 105 . 5 . The building official shall be an
ex officio member of the Board without vote and shall serve as the Secretary of the Board. The
Board shall adopt rules of procedure for conducting its business and shall render all decisions
and findings in writing.
113 .2 Applications/Hearings . When a building permit applicant or a holder of a building
permit desires relief from any decision of the building official related to the enforcement of this
code, except as is otherwise limited in Section 113 .4, such building permit applicant, building
permit holder, or representative thereof may appeal the decision of the building official to the
Board stating that such decision by the building official was based on an erroneous interpretation
of the building regulations or that an alternative design, alternative materials and/or the
alternative methods of construction proposed by the appellant are equivalent to those prescribed
by this code considering structural strength, effectiveness, fire resistance, durability, safety and
any other pertinent factors .
The Board shall hear and decide all appeals made to it and shall have the authority to rule in
favor of the appellant when the Board determines that the interpretation of the building
regulations of the City by the building official was erroneous, or when the Board determines an
alternative design, alternative materials and/or the alternative methods proposed by the appellant
are equivalent to those prescribed by this code considering structural strength, effectiveness, fire
resistance, durability, safety and any other pertinent factors. The Board shall require that
sufficient evidence be submitted to substantiate any claims made regarding the proposed
7
alternative design, alternative materials and/or alternative methods of construction. A quorum of
4 members shall be necessary for any meeting of the Board.
113 .3 Fees and Notification . Persons desiring to appeal to the Board any decision of the
building official as provided in this section shall, at the time of filing such appeal, pay to the City
a filing fee in the amount of $ 50 . Written notice of hearings shall be given to the Appellant and,
with respect to requests for exceptions or variances to Section 1101 . 1 of this code as enacted by
the City, to the secretary to the Commission on Disability, at least 3 days prior to the hearing by
mailing the same to such party's last known address by regular U. S . mail.
113 .4 Limitations . The Building Review Board shall have no authority with respect to any of
the following functions :
I . The administration of this code except as expressly provided otherwise ;
2 . Waiving requirements of this code, except as provided pursuant to this section;
3 . Modifying the applicable provisions of, or granting variances to, this code, or
approving the use of alternative designs, alternative materials and/or alternative
methods of construction except as provided for in this section and based upon a
specific appeal from a determination or decision of the building official on an
individual case basis ; and
4. Modifying, interpreting, or ruling on the applicability or intent of the zoning and land
use regulations or other laws of the City except as expressly empowered otherwise . "
(14) Section 114. 4, Violation penalties is amended to read as follows :
"114.4 Violation penalties. Any person who violates a provision of this code or fails to comply
with any of the requirements thereof or who erects, constructs, alters or repairs a building or
structure in violation of the approved construction documents or directive of the building
official, or of a permit or certificate issued under the provisions of this code, shall be guilty of a
misdemeanor subject to the penalties and fines pursuant to Section 1 - 15 of the Code of the City,
punishable by a fine of not more than $ 1 ,000 . 00 dollars, or by imprisonment not exceeding 180
days, or both such fine and imprisonment. Each day that a violation continues after due notice
has been served shall be deemed a separate offense. "
(15) Section 114. 5 Work commencing before permit issuance, is added to read as follows :
"114.5 Work commencing before permit issuance. In addition to penalties set forth in
Section 114.4, any person or firm who, before obtaining the necessary permit(s), commences
any construction of, or work on, a building, structure, electrical, gas, mechanical or plumbing
system that is not otherwise exempted from obtaining a permit, shall be subject to a
processing and penalty fee in addition to the standard prescribed permit fee. Such additional
fee shall be equal to the permit fee, except that such fee shall not be less than $ 50 nor more
than $ 1 ,000 for the first such violation. A person or firm committing the same such violation
repeatedly is subject to processing and penalty fees equal to double the amount of the permit
fee or double the amount of the preceding violation, whichever is greater, for every same
such subsequent violation committed thereafter within any 180-day period. The foregoing
8
fees may be appealed to the City Manager pursuant to Chapter 2 , Article VI of the Code of
the City. "
(16) Section 202, DEFINITIONS, terms are hereby amended or added in alphabetical sequence in
the following respects :
The term, "DWELLING " is hereby amended to read as follows :
"DWELLING is defined as set forth in the Land Use Code . "
The term, "DWELLING UNIT" is hereby amended to read as follows :
" DWELLING UNIT is defined as set forth in the Land Use Code ."
The term, "FAMILY" is added to read as follows :
"FAMILY is defined as set forth in the Land Use Code. "
The term, "GRADE " is hereby added to read as follows :
"GRADE (ADJACENT GROUND ELEVATION) . The lowest point of elevation of the
finished surface of the ground, paving or sidewalk with the area between the building and the
property line or, when the property line is more than 5 feet ( 1 . 524 m) from the building,
between the building and a line 5 feet ( 1 . 524 m) from the building. "
The term, "ROOM, SLEEPING " is added to read as follows :
"ROOM, SLEEPING (BEDROOM). A habitable room within a dwelling or other housing
unit designed primarily for the purpose of sleeping. The presence of a bed, cot, mattress,
convertible sofa or other similar furnishing used for sleeping purposes is indicia for
determining that such space or room qualifies as a sleeping room. The presence of closets
and similar storage facilities are not considered as relevant factors in determining whether or
not a room is a sleeping room."
The term, "TOWNHOUSE " is amended to read as follows :
9
"TOWNHOUSE. A single-family dwelling unit constructed as part of a group of 2 or more
attached individual dwelling units , each of which is separated from the other from the
foundation to the roof and is located entirely on a separately recorded and platted parcel of
land (site) bounded by property lines, and which parcel is deeded exclusively for such
single-family dwelling. "
(17) Section 419. 1 General is amended to read as follows :
"419. 1 General. A live/work unit is a dwelling unit or sleeping unit in which a significant
portion of the space includes a nonresidential use that is operated by the tenant and shall
comply with Sections 419 . 1 through 419 . 8 .
EXCEPTION .
Dwelling or sleeping units that include an office that is less than 20 percent of the area of the
dwelling unit shall not be classified as a live/work unit. "
(18) Section 505. 2 Area Limitation is amended by adding a new exception number 3 to read as
follows :
"3 . Within individual dwelling units of Group R occupancies, the maximum aggregate area of
a mezzanine may be equal to one-half of the area of the room in which it is located,
without being considered an additional story; and to allow the mezzanine to be closed to
the room in which it is located, provided exits from the mezzanine are in conformance with
Section 505 . 3 . "
(19) Section 705. 3 Buildings on the same lot is amended by adding a third paragraph to read as
follows :
"Lines or walls which are established solely to delineate individual portions of a building or of
a planned unit development (PUD) need not be considered as property lines for the purposes
of this code, provided that such building is entirely located on property which is under
common ownership and further provided that required distances, set forth in Section 503 . 1 . 2
for assumed property lines between buildings located on the same property, are maintained."
(20) Section 902. 1 Definitions is amended by adding a new definition to read as follows :
"FIRE CONTAINMENT AREA is a portion of a story or basement which is totally enclosed
by not less than one-hour fire-resistive construction and as prescribed in Section 709, entitled
` Fire Partitions ' and Section 710, entitled ` Smoke Barriers . '
Openings other than doors and ducts shall be protected as specified in Section 715 . 5 and shall be
limited to a maximum of 25 percent of any one ( 1 ) wall. Self-closing devices may be used in
10
place of automatic closing devices on doors unlikely to be fixed open during normal conditions .
Examples are doors at toilet rooms, closets and small storage rooms and similar areas . "
(21) Section 903. 2 Where required, is amended by adding an exception number 2 to read as
follows :
"2 . Except for Occupancies with a Group R fire area in accordance with Section 903 .2 . 8 , an
automatic sprinkler system shall be installed in all buildings which are not divided into fire
containment areas as specified in Table 903 . L"
(22) Section 903. 2. 7 Group MItem #4 is amended to read as follows :
"4 . A Group M occupancy with a total combined floor area of more than 5 ,000 square feet and is
used for the display and sale of upholstered furniture . "
(23) Table 903.1 Maximum Allowable Fire-Containment Area is added as follows :
"TABLE 903. 1
MAXIMUM ALLOWABLE FIRE-CONTAINMENT AREA
(IN SQUARE FEET)
Types of Construction
Occupancy IA-- FIB H A H B III A III B IV-HT VA VB
Al 105000 10,000I l r NP F NP FNP F NP F NP F NP
A2, 109000 109000 F5 ,000 5 ,000 F59000 5 ,000 F59000 F59000 F59000
A3 , 4 10,000 10,000 5 ,000 5 ,000 5 ,000 5 ,000 5 ,000 5 ,000 5 ,000
13 , F11 S19 S2 F10,000 F10�000 7,0005 ,000 7,0005M, U ,000F7,000F79000F5 �000
F2 209000 209000 10,000 79000 109000 7,000 109000 109000 F59000
E 10,000 10,000 7,000 5 ,000 7,000 59000 7,000 79000 5 ,000
NP = Not Permitted
EXCEPTION .
S2 Open parking garages in accordance with Section 406 . 3 . "
(24) Section 907.2. 11 Single- and multiple-station smoke alarms is amended by adding a
second paragraph thereto to read as follows :
11
When one or more sleeping rooms are added or created in existing Group R Occupancies, the
entire dwelling unit shall be provided with smoke detectors located and installed as required
for new Group R Occupancies described herein. "
(25) Section 907. 9 through 907.11 Carbon monoxide detection is amended by adding three new
sections to read as follows :
"907.9 Carbon monoxide alarms. For new construction, an approved carbon monoxide alarm
shall be installed outside of each separate sleeping area in the immediate vicinity of the
bedrooms in dwelling units within which fuel-fired appliances are installed and in dwelling
units that have attached garages .
907. 10 Where required in existing dwellings. Where work requiring a permit occurs in
existing dwellings that have attached garages or in existing dwellings within which fuel-fired
appliances exist, carbon monoxide alarms shall be provided in accordance with Section
R315 . 1 .
907. 11 Alarm requirements. Single station carbon monoxide alarms shall be listed as
complying with UL 2034 and shall be installed in accordance with this code and the
manufacturer' s installation instructions ."
(26) Section 1007. 3 Stairways, Exceptions 1, 2 & 3 are amended to read as follows :
"EXCEPTIONS :
1 . The area of refuge is not required at open exit access or exit stairways as permitted by
Sections 1016 . 1 and 1022 . 1 in buildings not more than 4 stories above grade plane, that are
equipped throughout with an automatic sprinkler system installed in accordance with Section
903 . 3 . 1 . 1 or 903 . 3 . 1 . 2 .
2 . The clear width of 48 inches ( 1219 mm) between handrails is not required at exit access
stairway as permitted by Section 10 16 . 1 or exit stairways in buildings not more than 4 stories
above grade plane, equipped throughout with an automatic sprinkler system installed in
accordance with Section 903 . 3 . 1 . 1 or 903 . 3 . 1 . 2 .
3 . Areas of refuge are not required at exit stairways in buildings not more than 4 stories
above grade plane, equipped throughout with an automatic sprinkler system installed in
accordance with Section 903 . 3 . 1 . 1 or 903 . 3 . 1 . 2 . "
(27) Section 1007. 4 Elevators is amended by adding a new exception #5 to read as :
"5 . Elevators in buildings not more than 4 stories above grade plane are not required to be
considered an accessible means of egress when the building is equipped throughout with
12
an automatic sprinkler system installed in accordance with Section 903 .3 . 1 . 1 or 903 . 3 . 1 . 2 . "
(28) .S'ection 1007. 8 Two-way communication exception #1 is amended to read as follows :
"EXCEPTION :
1 . Two-way communication systems are not required at the elevator landing whore the two-
way conun inicatio system is provided within of buildings not required to provide areas of
refuge in accordance with Section 1007 . 6 . 3 . "
(29) Section 1008. 1. 5 Floor elevation is amended by adding a second paragraph to read as
follows :
"All exterior steps, slabs, walks, decks and patios serving as exterior door landings or
exterior stairs shall be adequately and permanently secured in place by approved methods
to prevent such landings or stairs from being undermined or subject to significant
displacement due to improper placement of supporting backfill or due to inadequate
anchoring methods . "
(30) Section 1008. 1. 5 Floor elevation is amended by adding a new, Exception 6, to read as follows :
"6 . Exterior doors serving individual dwelling units, other than the main entrance door to a
dwelling unit, may open at one intervening exterior step that is equally spaced between the
interior floor level above and exterior landing below, provided that the step has a minimum
tread depth of 12 inches, a maximum riser height of 7 3/4 inches (7 . 75 "), and a minimum
width equal to the door width, and further provided that the door does not swing over the
step . "
(31) Section 1009. 12 Handrails is amended to read as follows :
"1009. 12 Handrails. Stairways of more than one riser shall have handrails on each side and
shall comply with Section 1012 . Where glass is used to provide the handrail, the handrail
shall also comply with Section 2407 . "
(32) Section 1013. 7 Below grade openings is amended by adding a new section read as follows :
" 1013 .7 Below grade openings . All area wells, stair wells and light wells attached to any
building that are located less than 36 inches from the nearest intended walking surface and
deeper than 36 inches below the surrounding ground level, creating an opening with a
horizontal dimension greater than 24 inches measured perpendicular from the building, with
the side walls of such well having a slope steeper than 2 horizontal to 1 vertical, shall be
protected with guardrails conforming to this Section around the entire opening, or be provided
with an equivalent barrier.
EXCEPTIONS .
13
1 . The access side of stairways need not be barricaded.
2 . Area wells provided for emergency escape and rescue windows may be protected with
approved grates or covers that comply with Section 1029 .4 of this code .
3 . Covers and grates may be used over stairways and other openings used exclusively for
service access or for admitting light or ventilation. "
(33) Section 1029. 1 General Exceptions 1 and 2 are hereby deleted, exceptions 3 through 7 are
renumbered and amended to read as follows :
1 in other than Group R 3 oceupancies, buildings equipped throughout with an appro
auto afie sprink4er system in aceofdanee with Section 903 . 3 . 1 . 1 of 903 . 3 . 1 .2-.
2 . in othef than Gfoup IR 3 oectipaneies, slee,P ' � provided with a doof to a fife
" 1 . The emergency escape and rescue opening is permitted to open onto a balcony within an
atrium in accordance with the requirements of Section 404, provided the balcony provides
access to an exit and the dwelling unit or sleeping unit has a means of egress that is not open to
the atrium.
2 . Basements with a ceiling height of less than 72 inches ( 1829 mm) shall not be required to
have emergency escape and rescue windows .
3 . High-rise buildings in accordance with Section 403 .
4. Emergency escape and rescue openings are not required from basements or sleeping rooms
that have an exit door or exit access door that opens directly into a public way or to a yard,
court or exterior exit balcony that opens to a public way.
5 . Basements without habitable spaces and having no more than 200 square feet ( 18 . 6m) in
floor area shall not be required to have emergency escape windows ."
(34) Section 1029. 5. 1 Window Wells is amended by adding a new exception to read as follows :
"EXCEPTION :
With the window in the full open position, the bottom window well step may encroach a
maximum of 12 inches (304 mm) into the minimum horizontal projection, provided the well
meets the following criteria:
1 . The bottom of the well is not less than 36 inches wide (914 mm), centered
horizontally on the openable portion of the emergency escape and rescue door or window,
and
2 . An unobstructed clear horizontal projection of 36 inches (914 mm) is maintained at
the centerline of the openable portion of the emergency escape and rescue door or
window. "
14
(35) Section 1101. 2 Design is amended to read as follows :
" 1101 .2 Design. Buildings and facilities shall be designed and constructed to be accessible in
accordance with this code and the most recently published edition of ANSI A117 . 1 as
referenced by the building official. "
(36) Section 1103. 1 Where required is amended by adding a second and third paragraphs to
read as follows :
"Nothing in this code shall be construed as relieving or waiving compliance with Colorado law
as set forth in Section 9-5 - 101 et seq. , C .R. S .
When the Building Review Board considers granting exceptions or variances either to this
chapter pursuant to Section 113 of this code or to Colorado Statutes pursuant to Section 9-5 -
102, C . R. S . , it shall require the applicant requesting the exception or variance to demonstrate
that the application of a particular standard or specification relating to access for persons with
disabilities would impose an extraordinary hardship on the subject property. For the purposes
of this Section, an extraordinary hardship shall mean a substantial and unusual hardship which
is the direct result of unique physical site conditions such as terrain, topography or geology; or,
which is the direct result of other unique or special conditions encountered on the subject
property, but which are not typically encountered elsewhere in the City. Constraints,
complications or difficulties that may arise by complying with this chapter and/or with the
statutory standards for accessibility but that do not constitute an extraordinary hardship shall
not serve to justify the granting of an exception or variance . "
(37) Section 1107. 2 Design is amended by adding a second and third paragraph to read as
follows :
"When any building or buildings, classified as Group R, Division 1 or Group R, Division 2
Occupancy, are constructed as a single building project (or any phase thereof) on any one site
and such building project (or phase) contains one or more accessible dwelling units as required
by this chapter or Colorado law, said building project (or phase) shall be constructed such that
all such required accessible dwelling units in such building project (or phase) provide the same
functional features as are provided in the nonaccessible units in such building project (or
phase) . Furthermore, such functional features except for dwelling unit bedroom-types shall be
provided in the same proportion as in the nonaccessible units . Not less than 50 percent of the
required accessible dwelling units shall be constructed with the distribution of accessible
dwelling unit bedroom-types being proportionally the same as the distribution of nonaccessible
dwelling unit bedroom-types, provided that at least one of each dwelling unit bedroom-type
constructed in the building project (or phase) shall be an accessible dwelling unit.
For purposes of this Section, the following definitions shall apply. 'Dwelling unit bedroom-
type' shall mean the number of bedrooms within the dwelling unit. 'Functional feature' shall
mean: a closet, a garage, a carport, a patio, a deck, additional rooms (such as a bedroom,
bathroom, den, storeroom, laundry or similar room) and any other significant feature built at
15
the time of original construction that offers occupants improved convenience or comfort.
Aesthetic or decorative features such as colors, architectural design elements, trim and finish
materials, decorative heating appliances not providing the primary comfort heat source,
lighting fixture style, cabinet and hardware style, plumbing fixture style, the type and location
of windows and glazed lights, or any similar miscellaneous features shall not be construed as
functional features . "
(38) Section 1203. 3 Under floor ventilation is amended by adding two new paragraphs to read as
follows :
"The ground surface of the under floor space shall be covered with a vapor retarder material.
The vapor retarder shall be a minimum 10-mil non-reinforced polyethylene sheet when tested
in accordance with ASTM E154-99 . The sheet shall be continuously sealed in an approved
manner to the foundation walls, to the interior caissons or footing pads, plumbing lines and at
all laps of multiple sheets .
Mechanical ventilation systems for spaces under below grade floors shall designed by a
professional engineer; addressing moisture controls and by approved methods considering the
impact of negative pressures created by exhaust fans, clothes dryers and similar appliances ."
(39) Section 1211 Radon-resistant construction is amended by adding a new section to read as
follows :
"SECTION 1211 — RADON-RESISTANT CONSTRUCTION
1211 . 1 Scope. The provisions of this code shall apply to new R-2 Occupancies, multi-family
dwellings .
1211 . 1 Purpose. The purpose of this code is to provide minimum requirements to enhance
the public safety, health and general welfare, through construction methods designed and
installed to resist entry of radon gas into the occupied spaces of buildings regulated by this
code.
SECTION 1211 .2 - DEFINITIONS
1211 .2. 1 General. For the purpose of these requirements, the terms used shall be
defined as follows :
FOUNDATION DRAIN SYSTEM. A continuous length of drain tile, perforated
pipe, or filter mat extending around all or part of the internal or external perimeter of a
basement or crawl space footing designed to collect and drain away excess subsurface
water.
RADON. A naturally occurring, chemically inert, radioactive gas that is not detectable
by human senses and can move readily through particles of soil and rock and can
accumulate under the slabs and foundations of homes where it can easily enter the
living space through construction cracks and openings .
16
SOIL-GAS-RETARDER. A continuous membrane of 3 -mil (0. 075 mm) cross-linked
polyethylene or other equivalent material used to retard the flow of soil gases into a
building.
SUBFLOOR. A concrete slab and other approved permanent floor system that directly
contacts the ground and is within the walls of the living spaces of the building.
SUB-MEMBRANE DEPRESSURIZATION SYSTEM . A system designed to
achieve lower sub-membrane air pressure relative to crawl space air pressure by use of
a vent drawing air from beneath the soil-gas-retarder membrane.
SUB-SLAB DEPRESSURIZATION SYSTEM (Passive). A system designed to
achieve lower sub- slab air pressure relative to indoor air pressure by use of a vent pipe
routed through the conditioned space of a building and connecting the sub-slab area
with outdoor air, thereby relying on the convective flow of air upward in the vent to
draw air from beneath the slab .
SECTION 1211 .3 - REQUIREMENTS
1211 .3. 1 General. The following required construction methods are intended to resist
radon entry and prepare the building for post-construction radon mitigation.
1211 .3 .2 Subfloor preparation. A layer of gas-permeable material shall be placed
under all subfloors . The gas-permeable layer shall consist of one of the following
methods except that where fills of aggregate size less than that described in Method 1
are used beneath a slab, Method 2 ,3 , 4, or 5 must be used.
1 . A uniform layer of clean aggregate, a minimum of 4 inches ( 102 mm) thick. The
aggregate shall consist of material that will pass through a 2-inch (51 mm) sieve
and be retained by a 1/4 -inch (6.4 mm) sieve. In buildings where interior footings or
other barriers separate sub-grade areas, penetrations through the interior footing or
barrier equal to a minimum of 12 square inches (0. 094 m2) per 10 feet (3 . 048 m) of
barrier length shall be provided. A minimum of two penetrations shall be provided
per separation and be evenly spaced along the separation.
EXCEPTION .
In buildings where interior footings or other barriers separate the sub-grade
area, separate radon vent pipes may be installed for each sub-grade area as
specified in Section 1211 . 5 .2 in place of penetrations through the barrier.
2 . A foundation drain pipe system installed under concrete floor slab areas less
than 2,000 square feet ( 186 m2) , consisting of a continuous loop of minimum 3 -
inch (76 mm) diameter perforated pipe shall be laid in the sub-grade with the top of
pipe located I inch (25 .4 mm) below the concrete slab . The pipe may be rigid or
flexible but shall have perforations fully around the circumference with a free air
space equal to 1 . 83 square inches per square foot ( 127 cm2/m2) of exterior pipe
17
surface area. Such pipe shall be wrapped with approved filter material to prevent
blocking of pipe perforations . The pipe loop shall be located inside of the exterior
perimeter foundation walls not more than 12 inches (305 mm) from the perimeter
foundation walls . In buildings where interior footings or other barriers separate the
sub-grade area, the loop of pipe shall penetrate, or pass beneath such interior
footings or barriers. For slab areas greater than 2 ,000 square feet ( 186 m2) but less
than 4,000 square feet (372 m2), the preceding configuration may be used, provided
a minimum of 4-inch diameter ( 102 mm) pipe is installed. Slabs in excess of 4,000
square feet (372 m2) shall have under them separate loops for every additional
2,000 square feet ( 186 m2) of slab area when 3 -inch (76 mm) diameter pipe is used;
or, slabs may have separate loops provided for each additional increment in area
between 2,000 square feet ( 186 m2) and 4,000 square feet (372 m2) when 4-inch
( 102 mm) diameter pipe is used.
3 . A foundation drain soil gas collection mat system installed under concrete floor
slab areas of 2 ,000 square feet ( 186 m2) or less, consisting of a continuous
rectilinear loop of soil gas collection mat or drainage mat having minimum
dimensions of 1 inch in height by 12 inches in width (25 .4 mm in height x 305 mm
in width) and a nominal cross-sectional air flow area of 12 square inches (0 . 0078
m2) may be laid on top of the sub-grade . The mat shall be constructed of a matrix
that allows for the movement of air through it and be capable of supporting the
concrete placed upon it. The matrix shall be covered by approved filter material on
all four sides to prevent dirt or concrete from entering the matrix. All breaches and
joints in the filter material shall be repaired prior to the placement of the slab . The
loop shall be located inside the exterior perimeter foundation walls and within 12
inches (305 mm) from the perimeter foundation walls . In buildings where interior
footings or other barriers separate the sub-grade area, the mat shall penetrate these
interior footings or barriers to form a continuous loop around the exterior
perimeter.
Slabs larger than 2,000 square feet ( 186 m2) but less than 4,000 square feet (372
m2) shall have under them an additional strip of mat that bisects the loop forming
two areas approximately equally divided by the two halves of the rectilinear loop .
Slabs larger than 4,000 square feet (372 m2) shall have separate loops for each
200 ( 186 m2) square feet; or, increased to 4,000 square feet (372 m2) when a
loop is bisected as specified in the preceding configuration.
4 . A uniform layer of sand (native or fill), a minimum of 4 inches ( 102 mm) thick,
overlain by a layer or strips of geo-textile drainage matting designed to allow the
lateral flow of soil gases.
5 . Other materials, systems or floor designs with demonstrated capability to permit
depressurization across the entire sub-floor area.
1211 .3.3 Entry routes. Potential radon entry routes shall be closed in accordance with
Sections 1211 . 3 .4 . 1 through 1211 . 3 .4. 8
18
1211 .3.3. 1 Floor openings. Openings around bathtubs, showers, water closets,
pipes, wires or other objects that penetrate concrete slabs or other floor assemblies
shall be filled with a polyurethane caulk or equivalent sealant applied in
accordance with the manufacturer's recommendations .
1211 .3.3 .2 Concrete joints. All control joints, isolation joints, construction joints
and any other joints in concrete slabs or between slabs and foundation walls shall
be sealed with a caulk or sealant. Gaps and joints shall be cleared of loose material
and filled with polyurethane caulk or other elastomeric sealant applied in
accordance with the manufacturer's recommendations .
1211 .3 .3.3 Condensate drains. Condensate drains shall be trapped or routed
through non-perforated pipe to daylight.
1211 .3.3.4 Sumps. Sump pits open to soil or serving as the termination point for
sub-slab or exterior drain tile loops shall be covered with a gasketed or otherwise
sealed lid. Sumps used as the suction point in a sub-slab depressurization system
shall have a lid designed to accommodate the vent pipe . Sumps used as a floor
drain shall have a lid equipped with a trapped inlet and view port.
1211 .3.3.5 Foundation walls . Hollow block masonry foundation walls shall be
constructed with either a continuous course of solid masonry, one course of
masonry grouted solid, or a solid concrete beam at or above finished ground
surface to prevent passage of air from the interior of the wall into the living space .
Where a brick veneer or other masonry ledge is installed, the course immediately
below that ledge shall be sealed. Joints, cracks or other openings around all
penetrations of both exterior and interior surfaces of masonry block or wood
foundation walls below the ground surface shall be filled with polyurethane caulk
or equivalent sealant. Penetrations of concrete walls shall be filled.
1211 .3.3.6 Dampproofing. The exterior surfaces of portions of concrete and
masonry block walls below the ground surface shall be damp-proofed in
accordance with Section 1805 .
1211 .3 .3.7 Air-handling units. Air-handling units in crawl spaces shall be sealed
to prevent air from being drawn into the unit.
EXCEPTION .
19
Units with gasketed seams or units that are otherwise sealed by the
manufacturer to prevent leakage.
1211 .3 .3.8 Ducts. Ductwork passing through or beneath a slab shall be of seamless
material unless the air-handling system is designed to maintain continuous positive
pressure within such ducting. Joints in such ductwork shall be sealed to prevent air
leakage. Ductwork located in crawl spaces shall have all seams and j oints sealed by
closure systems in accordance with the International Mechanical Code.
1211 .3.4 Sub-membrane depressurization system. In buildings with interior
structural floors directly above under-floor spaces containing exposed soil surfaces that
are not protected by a sub-slab depressurization system, the following components of
sub-membrane depressurization system shall be installed during construction.
EXCEPTION .
Buildings in which an approved mechanical ventilation system complying with
Section 1203 or such other equivalent system that provides equivalent
depressurization across the entire sub-membrane area as determined by the
building official is installed in the under-floor spaces.
1211 .3 .4. 1 Ventilation. Crawl spaces and similar under-floor spaces shall be
provided with ventilation complying with Section 1203 .
1211 .3.4.2 Soil-gas-retarder. The exposed soil in under-floor spaces shall be
covered with a continuous layer of soil-gas-retarder. Such groundcover joints shall
overlap 6 inches ( 152 mm) and be sealed or taped. The edges of the groundcover
shall extend a minimum of 6 inches ( 152 mm) up onto all foundation walls
enclosing the under-floor space and shall be attached and sealed to foundation
walls in an approved manner.
1211 .3 .4.3 Vent pipe riser. A plumbing tee or other approved connection shall be
inserted horizontally beneath the sheeting and connected to a 3 - or 4-inch-diameter
(76 mm or 102 mm) fitting with a vertical vent pipe installed through the sheeting.
The vent pipe shall be extended up through the building floors, terminate at least
12 inches (305 mm) above the roof in a location at least 10 feet (3 . 048 m) away
from any window or other opening into the conditioned spaces of the building that
is less than 2 feet (0 . 610 m) below the exhaust point, and 10 feet (3 . 048 m) from
any window or other opening in adjoining or adjacent buildings .
20
1211 .3.5 Sub-slab depressurization system. The following components of a sub-slab
depressurization system shall be installed during construction under basement or slab-
on-grade floors .
1211 .5. 1 Vent pipe riser. A minimum 3 -inch-diameter (76 mm) ABS , PVC or
equivalent gas-tight pipe shall be embedded vertically into the sub-slab aggregate
or other permeable material before the slab is cast. A 'T' fitting or equivalent
method shall be used to ensure that the pipe opening remains within the sub-slab
permeable material . Alternatively, the 3 -inch (76 mm) pipe shall be inserted
directly into an interior perimeter drain tile loop or through a sealed sump cover
where the sump is exposed to the sub-slab aggregate or connected to it through a
drainage system.
All vent pipes shall be extended up through the building floors, terminate at least
12 inches (305 mm) above the surface of the roof in a location at least 10 feet
(3 . 048 m) away from any window, air intake, or other opening into the conditioned
spaces of the building that is less than 2 feet (0 . 610 m) below the exhaust point,
and 10 feet (3 .048 m) from any window or other opening in adjoining or adjacent
buildings . The discharge end of vent pipe terminations shall be unobstructed and
protected from small animal entry with a corrosion-resistant screen having
openings between '/4 inch (6 .4 mm) and %2 inch ( 12 . 7 mm) .
1211 .3.5.2 Multiple vent pipes. In buildings where interior footings or other
barriers separate the sub-slab aggregate or other gas-permeable material, each area
shall be fitted with an individual vent pipe. Vent pipes shall connect to a single
vent that terminates above the roof or each individual vent pipe shall terminate
separately above the roof.
1211 .3 .6 Vent pipe drainage. All components of the radon vent pipe system shall be
installed to provide positive drainage to the ground beneath the slab or soil-gas
retarder.
1211 .3.7 Vent pipe accessibility. Radon vent pipes shall be accessible for fan
installation through an attic or other area outside the habitable space .
EXCEPTION :
The radon vent pipe need not be accessible in an attic space where an approved
roof-top electrical supply is provided.
1211 .3.8 Vent pipe identification and notification. All exposed and visible interior
radon vent pipes shall be conspicuously identified with at least one label on each floor
21
and in attics provided with access openings. The label shall read substantially as
follows : 'Radon Reduction System. ' In addition to the preceding label, a notice shall be
placed in a conspicuous area near the vent pipe that includes the following statement :
` THIS RADON REDUCTION SYSTEM IS NOT REQUIRED TO BE TESTED AND
IS A 'PASSIVE' SYSTEM, RELYING ENTIRELY ON NATURAL VENTILATION.
OCCUPANTS ARE ADVISED TO TEST FOR RADON AND TAKE REMEDIAL
ACTION AS NECESSARY BY INSTALLING A CONTINUOUSLY OPERATING
FAN LOCATED IN THE VENT PIPE (ACCESS TYPICALLY PROVIDED IN THE
ATTIC) AND CONNECTED TO THE NEARBY PROVIDED ELECTRICAL
OUTLET. CALL 1 - 800-767-RADON FOR MORE INFORMATION. '
1211 .3.9 Combination foundations. Combination basement/crawl space or slab-on-
grade/crawl space foundations shall have separate radon vent pipes installed in each
type of foundation area. Each radon vent pipe shall terminate above the roof or shall be
connected to a single vent that terminates above the roof.
1211 .3 . 10 Building depressurization. Joints in air ducts and plenums in
unconditioned spaces shall be substantially air tight and permanently sealed with an
approved sealant, mastic, or other approved methods . Thermal envelope air infiltration
requirements shall comply with the energy conservation provisions in the energy
conservation code currently enacted by the City. Firestopping shall be in conformance
with the most recent general building code enacted by the City.
1211 .3. 11 Provisions for future depressurization fan installation. Permanent
provisions shall be made for the future installation of an in-line fan to be connected to
every radon vent pipe . Such designated fan locations shall be outside of the
conditioned envelope of the building, such as in the attic, garage and similar locations,
excluding crawl spaces and other interior under-floor spaces . Designated locations
shall accommodate an unobstructed permanent cylindrical space with the following
minimum dimensions : 12 inches (305 mm) measured radially around the radon vent
pipe along a vertical distance of 30 inches (760 mm) . Designated fan locations shall be
permanently accessible for servicing and maintenance. An electrical circuit shall be
provided within 4 feet ( 1 .219 m) of and within sight from designated fan locations .
Such circuit shall have a means of positive disconnection and be terminated in an
approved electrical outlet in accordance with the applicable current electric code.
1211 .3. 11 . 1 Depressurization fan system activation. When a passive system as
constructed in accordance with this code is to be converted to an active system, an
approved in-line fan shall be installed in a designated fan location as specified in
22
Section 1211 . 11 . 1 . Additionally, an approved permanent electric light fixture and
in-line pipe couplings that facilitate fan replacement shall be provided. The in-line
fan shall be designed to operate continuously for a period of not less than 5 years
and have a minimum air-flow rating as established by the building official. A
readily accessible manometer or other approved warning device that notifies
occupants of a fan malfunction by a visible or audible signal shall be installed
within the dwelling unit. "
(40) Section 1505. 1 General is amended in its entirety to read as follows .
"1505. 1 New Construction. The roof-covering classification on any new structure
regulated by this code shall be Class A.
EXCEPTIONS .
1 . Noncombustible roof coverings as defined in Section 1507 . 3 , 1507 .4, 1507 . 5 may
be applied in accordance with the manufacturer's specifications in place of a fire-
retardant roofing assembly.
2 . Any Class B or Class C roof covering may be applied on any new construction that
is added to an existing building classified as a Group R, Division 3 Occupancy,
provided the roof extremities of such existing building and new construction are
located a minimum distance of 5 feet to the nearest adjacent property line and are a
minimum distance of 10 feet to another building. "
(41) Table 1505.1, Minimum Roof Covering Classifications For Types of Construction, is
hereby deleted.
(41) Section 1507. 2. 9. 4 Sidewall flashing is amended by adding a new section read as follows :
" 1507.2.9.4 Sidewall flashing. Flashing against a vertical sidewall shall be by the step-
flashing method. The flashing shall be a minimum of 4 inches ( 102 mm) high and 4 inches
( 102 mm) wide . At the end of the vertical sidewall the step flashing shall be turned out in a
manner that directs water away from the wall and onto the roof and/or gutter.
EXCEPTION .
For re-roofing where step flashing would require removal of siding material, provided
adequate flashing is installed. "
(43) Section 1507. 2. 9. 5 Other flashing is amended by adding a new section read as follows :
"1507.2 .9.5 Other flashing. Flashing against a vertical front wall, as well as soil stack, vent
pipe and chimney flashing shall be applied according to the asphalt shingle manufacturer' s
printed instructions . "
23
(44) REROOFING, Section 1510. 1 is amended by adding two paragraphs at the end to read as
follows :
" No portion of an existing nonrated roof covering may be permanently replaced or
covered with more than one square of nonrated roof covering.
Any existing roof covering system may be replaced with a roof covering of the same
materials and classification, provided the replacement roof covering has a minimum
rating of Class C ."
(45) Section 1608. 2 Ground snow load, the first sentence is amended to read as follows :
" 1608.2 Ground Snow Loads . The ground snow loads to be used in determining the design
snow loads for roofs shall be shall be 30 psf as determined in accordance with ASCE 7 or
Figure 1608 .2 for the contiguous United States and Table 1608 .2 for Alaska. "
(46) Section 1609. 3Basic wind speed, the first sentence is amended to read as follows :
"1609.3 Basic wind speed. The basic wind speed, in mph, for the determination of the wind
loads shall be one hundred ( 100) miles per hour ( 161 kph) as determined by Figure 1609 . "
(47) Section 1804. 3. Mnal Grading is amended by adding a new section to read as follows :
" 1804.3. 1 Final Grading. Final grading adjacent to the foundation shall be compacted
sufficiently and in such a manner that it is not undermined or subject to significant settlement
or displacement due to improper placement of backfill. "
(48) Section 2406. 4 Hazardous locations Item 5 is amended to read as follows :
"5 . Glazing in doors and enclosures for hot tubs, whirlpools, saunas , steam rooms, bathtubs
and showers . Glazing in any portion of a building wall enclosing these compartments
where the bottom exposed edge of the glazing is less than 60 inches ( 1524 mm) above a
standing surface and where any portion of such glazing is within 48 inches of an interior
surface of hot tubs, whirlpools, saunas, steam rooms, bathtubs and showers . "
(49) Section 2902. 1 Touch free toilet facilities is amended by adding a new section read as follows :
"2902. 1 .3 Touch-free toilet facilities. Toilet facilities installed for occupancies associated
with food preparation or food service to the public shall be provided with:
1 . Automatic touch-free water control valves on lavatories .
24
2 . Automatic touch-free paper towel dispensers.
3 . Toilet facilities exit doors that allow exiting without requiring touching by hand, any door
hardware, such as knobs, levers, sliding bolts, latches and similar devices .
EXCEPTION .
Toilet facilities designed as a single occupant use may be provided with exit door locking
hardware to afford privacy. "
(50) Section 3109. 6 Barriers around decorative pools, fountains, and ponds is hereby added to
read as follows :
"3109.6 Barriers around decorative pools, fountains, and ponds . Decorative pools,
fountains , and ponds which can contain water deeper than 24 inches (610 mm), shall be protected by
barriers installed in accordance with section 3109 .4. "
(51) Appendix C GROUP UAGRICULTURAL BUILDINGS is adopted in its entirety.
(52) Appendix E SUPPLEMENTARYACCESSIBILITYREQUIREMENTS, is adopted in its
entirety.
(53) Appendix I PATIO COVERS is adopted in its entirety .
Introduced, considered favorably on first reading, and ordered published this 7th day of
September, A.D . 2010, and to be presented for final passage on the 21 st day of September, A.D .
2010,
Mayor
ATTEST :
City Clerk
Passed and adopted on final reading on the 21 st day of September, A.D . 2010 .
Mayor
25
ATTEST :
City Clerk
26
ORDINANCE NO . 0999 20109
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING CHAPTER 5 , ARTICLE II, DIVISION 2 , OF THE CODE
OF THE CITY OF FORT COLLINS FOR THE PURPOSE OF
REPEALING THE 2006INTERNATIONAL ENERGY CONSERVATION CODE
AND ADOPTING THE 2009 INTERNATIONAL
ENERGY CONSERVATION CODE (IECC), WITH AMENDMENTS
WHEREAS, since 1924, the City has reviewed, amended and adopted the latest
nationally recognized building standards available for the times; and
WHEREAS , upon recommendation of City staff, the City Council has determined
that it is in the best interests of the City to align the five interconnected basic construction
codes under one publication year; and
WHEREAS, the five interconnected basic construction codes are the International
Building Code, International Residential Code, International Mechanical Code,
International Fuel Gas Code, and International Energy Conservation Code; and
WHEREAS , the City Council has determined that the 2009 publication year of
the five interconnected basic construction codes ought to be adopted and that their
counterpart codes previously adopted should be repealed both in order to align the
publication years of the codes and also because the 2009 publications contain
improvements in construction code regulation; and
WHEREAS , City staff has conducted a significant public outreach program,
working with the regulated construction industry and building professionals ; and
WHEREAS , the adoption of the five interconnected basic construction codes has
been presented to and recommended by the Affordable Housing Board, the Commission
on Disability, the Air Quality Advisory Board, the Natural Resources Advisory Board,
the Building Review Board, the Electric Board, the Landmark Preservation Commission
and the Water Board; and
WHEREAS, the City Council has determined that it is in the best interests of the
citizens of the City that more stringent insulation rating requirements should be
established in order to conserve energy and reduce monthly utility bills ; and
WHEREAS , the City Council has determined that it is in the best interest of the
health, safety and welfare of the City and its citizens that the 2006 INTERNATIONAL
ENERGY CONSERVATION CODE, as amended be repealed and that in its place, the
2009 International Energy Conservation Code be adopted, with amendments.
NOW, THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY
OF FORT COLLINS as follows :
1
Section 1 . That Section 5 -26(c) of the Code of the City of Fort Collins is
hereby amended to read as follows :
(c) Thefe is hereby dopt efefene.ePursuant to the power and authority
conferred on the City Council by Section 31 - 16-202, C .R. S . , and Article II, Section 7 of
the Charter, the City Council hereby repeals the 2006 International Energy Conservation
Code (2006 IECC) , and adopts as the energy conservation code of the City the 2009
International Energy Conservation Code (2009 IECC) published by the International
Code Council (!CC) , as amended by the City, which shall have the same force and effect
as though set forth in full herein and which shall apply exclusively to the design and
construction of all buildings that are classified as residential buildings not more than
three (3) stories above grade and their systems ; new portions of such existing buildings
and their systems ; and new systems and equipment in such existing buildings, exclusive
of detached one- and two-family dwellings , multiple single-family dwellings
(townhouses), for the purpose of establishing minimum requirements for minimum
energy efficiency.
Section 2 . That Section 5 -31 of the Code of the City of Fort Collins is hereby
amended to read as follows :
Sec. 5-31 Amendments and deletions to code.
The 2009 International Energy Conservation Code adopted herein is hereby
amended in the following respects :
(1) Section 101.1 Title is amended to read as follows :
"101 . 1 Title. This code shall be known as the International Energy Conservation
Code of the City of Fort Collins and shall be cited as such. It is referred to herein as
` this code ' .
(2) Section 103. 6 Permits is added to read as follows :
"103.6 Permits. Procedures related to permits, required inspections, payment of fees
and obtaining required approvals shall be as set forth in Section 105 , entitled
` Permits ' of the adopted International Building Code. "
(3) Section 109 Board of Appeals is amended in its entirety to read as follows :
"109. 1 General. Appeals of decisions, determinations and interpretations of this code
shall be made pursuant to applicable provisions as set forth in Section 113 , entitled
` Board of Appeals ' of the adopted International Building Code. "
(4) Section 110 Violations is added to read as follows :
" 110. 1 General. Any person who violates a provision of this code or fails to
comply with any of the requirements thereof or who erects, constructs, alters or
2
repairs a building or structure in violation of the approved construction documents
or directive of the building official, or of a permit or certificate issued under the
provisions of this code, shall be guilty of a misdemeanor subject to the penalties
and fines pursuant to Section 1 - 15 of the Code of the City, punishable by a fine of
not more than $ 1 , 000 . 00 dollars, or by imprisonment not exceeding 180 days, or
both such fine and imprisonment. Each day that a violation continues after due
notice has been served shall be deemed a separate offense . "
(5) Section 110. 2 Work commencing before permit issuance is hereby added to read as
follows :
"110.2 Work commencing before permit issuance. In addition to penalties set forth
in 110 . 1 any person or firm who, before obtaining the necessary permit(s),
commences any construction of, or work on, a building, structure, electrical, gas,
mechanical or plumbing system that is not otherwise exempted from obtaining a
permit, shall be subject to a processing and penalty fee in addition to the standard
prescribed permit fee. Such additional fee shall be equal to the permit fee, except that
such fee shall not be less than $ 50 nor more than $ 1 ,000 for the first such violation.
A person or firm committing the same such violation repeatedly is subject to
processing and penalty fees equal to double the amount of the permit fee or double
the amount of the preceding violation, whichever is greater, for every same such
subsequent violation committed thereafter within any 180-day period. The foregoing
fees may be appealed to the City Manager pursuant to Chapter 2, Article VI of the
Code of the City. "
(6) Section 301. 4 Local Design Temperatures is added to read as follows :
"Exterior and interior local design parameters.
Winter Outdoor, Design Dry-bulb (OF) = 4
Winter Indoor, Design Dry-bulb (OF) = 72
Summer, Outdoor Design Dry-bulb = 89
(OF)
Summer, Indoor, Design Dry-bulb (OF) = 75
Summer, Design Wet-bulb (OF) = 62
Degree days heating = 6368
Degree days cooling = 479
{For SI : °C = [(°F)-32]/ 1 . 8 . } "
Fort Collins is in Climate Zone 5 ."
(7) Section 403. 2. 1 Insulation is amended to read as follows :
3
"403 .2. 1 Insulation. (Mandatory) Supply ducts in attics shall be
insulated to a minimum of R- 8 . All other ducts shall be insulated to a minimum of R-
6 .
EXCEPTION.
Ducts or portions thereof located completely inside the building thermal envelope . "
(8) Section 502. 2. 4 Below grade walls is amended to read as follows :
"502.2.4 Below-grade walls. The minimum thermal resistance (R-value) of the
insulating material installed in, or continuously on, the below-grade walls shall be as
specified Table 502z2", R- 10 and shall extend to a depth of 10 feet (3 ,048 mm)
below the outside finish ground level, or to the level of the floor, whichever is less."
(9) Section 502. 2. 6 Slabs on grade is amended to read as follows :
"502.2 .6 Slabs on grade. The minimum thermal resistance (R-value) of the insulation
around the perimeter of unheated slab-on-grade floors shall be R- 10 for 24 inches
below. The minimum thermal resistance (R-value) of the insulation around the
perimeter of heated slab-on-grade floors shall be as specified in Table 502 .2( 1 ) . The
insulation shall be placed on the outside of the foundation or on the inside of a
foundation wall. The insulation shall extend downward from the top of the slab for a
minimum distance as shown in the table or to the top of the footing, whichever is less,
or downward to at least the bottom of the slab and then horizontally to the interior or
exterior for the total distance shown in the table.
Introduced, considered favorably on first reading, and ordered published this 7th
day of September, A.D . 2010, and to be presented for final passage on the 21 st day of
September, A.D . 2010 .
Mayor
ATTEST :
City Clerk
Passed and adopted on final reading on the 21st day of September, A . D . 2010 .
Mayor
ATTEST :
City Clerk
4
ORDINANCE NO , 1005 2010
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING CHAPTER 5 , ARTICLE II, DIVISION 2 , OF THE CODE
OF THE CITY OF FORT COLLINS FOR THE PURPOSE OF
REPEALING THE 2003 INTERNATIONAL
RESIDENTIAL CODE (IRC), AND ADOPTING THE
2009 INTERNATIONAL RESIDENTIAL CODE, WITH AMENDMENTS
WHEREAS , since 1924, the City has reviewed, amended and adopted the latest
nationally recognized building standards available for the times; and
WHEREAS , upon recommendation of City staff, the City Council has determined that it
is in the best interests of the City to align the five interconnected basic construction codes under
one publication year; and
WHEREAS , the five interconnected basic construction codes are the International
Building Code, International Residential Code, International Mechanical Code, International
Fuel Gas Code, and International Energy Conservation Code; and
WHEREAS , the City Council has determined that the 2009 publication year of the five
interconnected basic construction codes ought to be adopted and that their counterpart codes
previously adopted should be repealed both in order to align the publication years of the codes
and also because the 2009 publications contain improvements in construction code regulation;
and
WHEREAS , City staff has conducted a significant public outreach program, working
with the regulated construction industry and building professionals ; and
WHEREAS , the adoption of the five interconnected basic construction codes has been
presented to and recommended by the Affordable Housing Board, the Commission on Disability,
the Air Quality Advisory Board, the Natural Resources Advisory Board, the Building Review
Board, the Electric Board, the Landmark Preservation Commission and the Water Board; and
WHEREAS , the Council of the City of Fort Collins has determined that it is in the best
interest of the health, safety and welfare of the City and its citizens that the 2003 International
Residential Code be repealed and that in its place, the 2009 International Residential Code, be
adopted, with amendments .
NOW, THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY OF
FORT COLLINS as follows :
Section 1 . That Section 5 -26(d) of the Code of the City of Fort Collins is hereby
amended to read as follows :
(d) Thefe is hereby dopt efer-encePursuant to the power and authority
conferred on the City Council by Section 31 - 16-202 , C .R. S . , and Article II, Section 7 of
1
the Charter, the City Council hereby repeals as the fesi 7enti ' building
eode of the City,
the 2003 Edition of the International Residential Code, and adopts as the residential
building code of the City the 2009 International Residential Code published by the
International Code Council, as amended by the City, which shall have the same force and
effect as though as if set forth in full herein. The subject matter of the International
Residential Code adopted herein includes comprehensive provisions and standards for the
protection of the public health and safety by prescribing regulations governing the
construction, alteration, enlargement, relocation, replacement, repair, equipment, use and
occupancy, location, removal and demolition of, and its applicability is hereby limited to,
individual nonattached one- and two-family dwellings and multiple single-family
dwellings (townhouses) not more than three (3 ) stories above grade in height with a
separate means of egress, and their accessory structures .
Section 2 . That Section 5 -30 of the Code of the City of Fort Collins is hereby
repealed and reenacted to read as follows :
Sec. 5-30 Amendments and deletions to code.
The 2009 International Residential Code adopted herein is hereby amended in the following
respects :
(1) Section RI01. 1 Title is hereby amended to read as follows :
"R101 . 1 Title. These provisions shall be known as the Residential Code for One- and
Two-family Dwellings of the City of Fort Collins and shall be cited as such and will be
referred to herein as "this code. "
(2) Section R102. 4 Referenced codes and standards, is hereby amended to read as follows :
"R102.4 Referenced codes and standards. The codes and standards referenced herein
shall be those that are listed in Section 101 .4, entitled ` Referenced Codes ' of the adopted
International Building Code and shall be considered part of the requirements of this code
to the prescribed extent of each such reference. Where differences occur between
provisions of this code and referenced codes and standards, the provisions of this code
shall apply. "
(3) Section R103 Code Administration is hereby amended to read as follows :
"SECTION R103 CODE ADMINISTRATION.
R103. 1 Entity charged with code administration shall be as determined in accordance
with Section 103 , entitled ` Code Administration' of the adopted International Building
Code. "
(4) Section R105. 2 Work exempt from permit, items 1 , 3 , 5 , 7, 8 , 9, 11 , 12 , 13 , 14 under the
heading of "Building" are amended to read as follows :
2
"R105.2 Work exempt from permit. Permits shall not be required for the following
buildings, structures, or alterations thereto listed below. Exemption from the permit
requirements of this code shall not be deemed to grant authorization for any work to be done
in any manner in violation of the provisions of this code or any other laws or ordinances of
the City.
Building:
1 .Detached one-story accessory buildings used for lawn and garden equipment storage, tool
storage and similar uses, provided such buildings do not exceed 120 square feet ( 11 . 15 m,)
of floor area nor 8 feet (2 .438 m) in height, do not house flammable liquids in quantities
exceeding 10 gallons (38 1) per building and are constructed entirely of noncombustible
materials when located less than 3 feet (0 . 914 m) from an adjoining property line .
3 . Retaining walls that are not over 4 feet ( 1219 mm) in height measured from the low side
grade to the top of the wall, provided the horizontal distance to the next uphill retaining
wall is at least equal to the total height of the lower retaining wall, unless supporting a
surcharge or impounding Class I, 11 or IIIA liquids .
5 Platforms and decks intended for human occupancy or walking, sidewalks and driveways
not more than 30 inches (762 mm) above adjacent grade, and not over any basement or
story below and are not part of an accessible route .
7 . Prefabricated and portable swimming or wading pools, hot tubs or spas when the walls are
entirely above grade and which cannot contain water more than 24 inches (610 mm) deep.
8 . Swings and other play or playground equipment, including elevated playhouses not
exceeding 120 square feet ( 11 . 15 m2) of floor area nor 8 feet (2 .438 m) in height measured
from the floor to the highest point of such structure, designed and used exclusively for play.
9 . Window awnings on Group R, Division 3 and Group U Occupancies projecting not more
than 54 inches ( 1372 mm), window replacement requiring no structural alteration and when
such work is determined not to be historically significant, storm window, storm door and
rain gutter installation.
11 . Roofing repair or replacement work not exceeding one square ( 100 square feet) of
covering per building.
12 . Replacement of nonstructural siding.
13 .Minor work valued at less than $500 when such minor work does not involve alteration of
structural components, fire-rated assemblies, plumbing, electrical, mechanical or fire-
extinguishing systems .
3
14 . Decorative ponds, fountains and pools which cannot contain water more than 24 inches
(610 mm) deep . "
(5) Section R105. 2 Work exempt from permit, is further amended by deleting all headings and
references under Electrical, Gas, and Mechanical.
�r
2 . Reinstallation of attachment plug feeeptaeles but not the outlets thefe
sae location
volts and
net capable of
supplying more than
50 watts
of
enefgy
GM
. .
2 . Replacement of any ffl.inof paA that does not altef appfoval of eqHi�qment of make
3 . Poftable fuel cell appliaHees that afe not conneeted to a fixed pir ix�b ".7 and afe
1 Poftable heating
vnnhiv" � V
2 portable cooling units.
lac , this cello
N1 . D.,rt., l-.lO ev,lHOffi4iye eoolers
rc rigefuntAfflrttti A4.:P..aet+iat ot$r" of hofsepvvP,- ( 746 AT) of loser.
8 . PoAable fuel cell applioHees that at!e not connected to a fixed piF4�b "J � and at!e
not ; ntereenneete to n power nr; il
The stopping of leaks in 7 ) soil, pipe ;
an�T concealed 7 drainpipe, 7 soil,
waste or- vent pipe becomes defeetive and 4t
beeeffl.es; ifte-eessafy to re-move and feplaee the
co sidet!ed as ne.w 3A Tor-k and a permit shall be obtained and inspection made as pr-ovided
} s ^ e � i,,
1Lf j �CC��' 1�Ti'�R��e ng�TTC p'CC�ro i��pn ; r; c leaks , pipes, valves
fix ires, and the tvTl e� �nZV'Pal and reinstallation
of
water-
closets , pfovided s is remains do not
ifiyelye, of re"i-fe the -Fopl eOm Ont of rellrr,ingemOnt of
v lcren nines of fi tHFOC1
4
(6) Section R105. _S Expiration is hereby amended by adding a second paragraph to read as
follows :
"Both prior to and subsequent to the effective date of this code, any work authorized by a
permit regulated by this code or any other building construction code administered by the
building official that involves the construction or alteration of an exterior building
component, assembly or finish material, such as the foundation, wall and roof framing,
sheathing, siding, fenestration, and roof covering, shall be fully finished and completed for
permanent outdoor exposure within 24 months of date of this issuance of such permit,
regardless of when then permit was issued. Failure to comply with the preceding specified
time period shall constitute a violation of this code, resulting in revocation of the permit, and
shall subject the permit holder and property owner to all penalties provided by the Code of
the City. "
(7) Section R105. 10 Premises Identification is hereby added to read as follows :
"R105. 10 Premises Identification. The approved permit number and street address number
shall be displayed and be plainly visible and legible from the public street or road fronting
the property on which any new building is being constructed. "
(8) Section R105. 11 Transfer of permits, is hereby added to read as follows :
"R105. 11 Transfer of permits . A current valid building permit may be transferred from one
party to another upon written application to the building official. When any changes are
made to the original plans and specifications that substantially differ from the plans
submitted with the permit, as determined by the building official, a new plan review fee shall
be paid as calculated in accordance with Section R108 . A fee of $ 50 shall be paid to cover
administrative costs for all building permit transfers . No change shall be made in the
expiration date of the original permit. "
(9) Section R106. 1. 3 Information for construction in areas prone to flooding is hereby
amended to read as follows :
"R106. 1 .3 Information for construction in areas prone to flooding. "For buildings or
structures regulated under the scope of this code that are in whole or in part located in flood
hazard areas, construction documents shall be submitted as established in accordance with
the Code of the City, Chapter 10, entitled ` Flood Prevention and Protection ' . "
(10) Section RI06. 1. 4 Grading performance plans and certificate, is hereby added to read as
follows :
"R106. 1 .4 Grading performance plans and certificate. Every building permit application
for a new building regulated by this code shall be accompanied by a site drainage/grading
performance plan as prescribed by City standards . "
(11) Section RI06. 1. 5 Exterior wall envelope, is hereby added to read as follows :
5
"R106. 1 .5 Exterior wall envelope. Construction documents for all buildings shall describe
the exterior wall envelope in sufficient detail to determine compliance with this code . When
applicable as determined by the building official, construction documents submitted as part
of the building permit application shall provide details of the exterior wall envelope as
required, including flashing, intersections of dissimilar materials , corners, end details, control
joints, intersections at roof, eaves, or parapets, means of drainage, water-resistive membrane,
and details around openings . The construction documents shall include manufacturing
installation instructions that provide supporting documentation that the proposed penetration
and opening details described in the construction documents maintain the weather resistance
of the exterior wall envelope . The supporting documentation shall fully describe the exterior
wall system which was tested, where applicable, as well as the test procedure used. "
(12) Section R106 3. 1 Approval of construction documents, is hereby amended to read as
follows :
"R106.3 . 1 Approval of construction documents. When the building official issues a
permit, the construction documents shall be approved in writing or by a stamp . Whie n +n +on
"REVIEWED FOR CODE CON4Pr r A NCE " One set of construction documents so reviewed
shall be retained by the building official. The other set shall be returned to the applicant, shall
be kept at the site of work and shall be open to inspection by the building official or his or
her authorized representative. "
(13) Section RI07, TEMPORARY STRUCTURES AND USES, is deleted in its entirety .
SECTION RI07
TEMPORARY STRUCTURES AND USES
RI07. 1 General. The building official is authorized W peffflit for tefflpoF
shall not be pefmitted for more than 180 days . The boildifig offieial is au�ffior-ized to gFatl
ov�ov. nAv. n �Av � ovvAv. n4rn4o� `.niino
fiFe
means of
ventilation and sanitar-y r-equir-ements of
l strength, 7 egress, light,
!.A/Yp nn no .Onnn NCI to efisufe the
publ a health,
safe and
n genera wel f YO
Dom? Tn.v pof!ary power-.
The building
of � n/�L is" ffl fizedTLIJ o
temporarily supply and use power- in part of an electfic installation before such
issued. The part covered by the temporary cer-tifieate shall comply with the tv-quifements
spee fie TAN tempor-ai=y lighting,
1gNti g hem
AY power- in
NF-P A / 0
6
(14) Section R108, FEES, is hereby amended in its entirety to read as follows :
"SECTION 108 FEES
R108. 1 Payment of fees. All items relating to fees shall be as specified and in accordance
with Section 109 Fees of the adopted International Building Code. "
(15) Section R109. 1. 7 Site Survey required, is hereby added to read as follows:
"R109. 1 .7 Site Survey required. A survey or improvement location certificate of the site
on which a new building or addition is to be constructed may be required by the building
official to verify that the structure is located in accordance with the approved plans and any
other regulations of the City. "
(16) Section R110. 2 Change in use, is hereby amended to read as follows :
"R110.2 Change in use. Changes in the character or use of an existing structure shall not
be made except in conformance with this code and the general building code enacted by the
City. "
(17) Section R112, BOARD OF APPEALS, is hereby amended in its entirety to read as follows :
"SECTION R112 BOARD OF APPEALS
R112. 1 General. Appeals of decisions, determinations and interpretations of this code shall
be made pursuant to applicable provisions as set forth in Section 113 , entitled ` Board of
Appeals ' of the adopted International Building Code."
(18) Section R113. 4 Violation penalties, is hereby amended to read as follows :
"R113 .4 Violation penalties. Any person who violates a provision of this code or fails to
comply with any of the requirements thereof or who erects, constructs, alters or repairs a
building or structure in violation of the approved construction documents or directive of the
building official, or of a permit or certificate issued under the provisions of this code, shall
be guilty of a misdemeanor subject to the penalties and fines pursuant to Section 1 - 15 of
the Code of the City, punishable by a fine of not more than $ 1 ,000 or by imprisonment not
exceeding 180 days, or both such fine and imprisonment. Each day that a violation
continues after due notice has been served shall be deemed a separate offense . "
(19) Section R113. 5 Work commencing before permit issuance is hereby added to read as
follows :
"R113.5 Work commencing before permit issuance. In addition to penalties set forth in
R113A, any person or firm who, before obtaining the necessary permit(s), commences any
construction of, or work on, a building, structure, electrical, gas, mechanical or plumbing
7
system that is not otherwise exempted from obtaining a permit, shall be subject to a
processing and penalty fee in addition to the standard prescribed permit fee . Such additional
fee shall be equal to the permit fee, except that such fee shall not be less than $ 50 nor more
than $ 1 ,000 for the first such violation. A person or firm committing such violation
repeatedly is subject to processing and penalty fees equal to double the amount of the permit
fee or double the amount of the preceding violation, whichever is greater, for every same
such subsequent violation committed thereafter within any 180-day period. The foregoing
fees may be appealed to the City Manager pursuant to Chapter 2 , Article VI of the Code of
the City. "
(20) Section R202, DEFINITIONS, terms are hereby amended or added in alphabetical
sequence in the following respects :
The term, `BASEMENT", is hereby amended to read as follows :
"BASEMENT. That portion of a building located partly or completely below grade,
wherein the underside of the floor system immediately above is 72 inches ( 1829 mm) or
more above the surface of an approved permanent basement floor system. "
The term, "CITY" is hereby added to read as follows :
"CITY is defined as set forth in the Code of the City. "
The term, "CRAWLSPACE " is hereby added to read as follows :
"CRAWLSPACE. That portion of a building that is conditioned or non-conditioned
space located partly or completely below grade (excluding the under-floor space beneath
below-grade structural floor systems) , wherein the underside of the adjacent finished
floor above is less than 72 inches ( 1829 mm) above the bottom surface of such
crawlspace ."
The term, "DWELLING " is hereby amended to read as follows :
"DWELLING is defined as set forth in the Land Use Code. "
The term, "DWELLING UNIT" is hereby amended to read as follows :
"DWELLING UNIT is defined as set forth in the Land Use Code. "
The term, "FAMILY" is hereby added to read as follows :
"FAMILY is defined as set forth in the Land Use Code . "
The term, "FLOOR AREA " is hereby added to read as follows :
"FLOOR AREA. The area included within the surrounding exterior walls of a building
or portion thereof, exclusive of vent shafts and courts . The floor area of a building, or
8
portion thereof, not provided with surrounding exterior walls shall be the usable area
under the horizontal projection of the roof or floor above ."
The term, "GRADE " is hereby amended to read as follows :
"GRADE (ADJACENT GROUND ELEVATION) . The lowest point of elevation of the
finished surface of the ground, paving or sidewalk with the area between the building and
the property line or, when the property line is more than 5 feet ( 1 . 524 m) from the
building, between the building and a line 5 feet ( 1 . 524 m) from the building. "
The term "HABITABLE SPACE ", is hereby amended to read as follows :
"HABITABLE SPACE. A space in a building approved for living, sleeping, eating or
cooking, bathing and personal hygiene . Closets, halls, crawlspaces, storage, laundry
rooms, utility spaces and similar areas are not considered habitable spaces. "
The term "ROOM, SLEEPING (BEDROOM') , is hereby added to read as follows :
"ROOM, SLEEPING (BEDROOM). A habitable room within a dwelling or other
housing unit designed primarily for the purpose of sleeping. The presence of a bed, cot,
mattress, convertible sofa or other similar furnishing used for sleeping purposes is indicia
for determining that such space or room qualifies as a sleeping room. The presence of
closets and similar storage facilities is not considered a relevant factor in determining
whether or not a room is a sleeping room."
The term "SITE ", is hereby added to read as follows :
"SITE. A parcel of land bounded by a property line or a designated portion of a public
right-of-way. "
The term, "TOWNHOUSE ", is hereby amended to read as follows :
"TOWNHOUSE : A single-family dwelling unit constructed in a group of two or more
attached individual units, each of which is separated from the other from the foundation
to the roof and is located entirely on a separately recorded and platted parcel of land (site)
bounded by property lines that is deeded exclusively for such single-family dwelling. "
(21) Section 301. 1. 3 Engineered Design is hereby amended to read as follows :
"R301 . 1 .3 Engineered design. When a building of otherwise conventional light-frame
construction contains structural elements not conforming to this code, these elements shall
be designed in accordance with accepted engineering practice. The extent of such design
need only demonstrate compliance of nonconventional elements with other applicable
provisions and shall be compatible with the performance of the conventional framed
system. Engineered design, in accordance with the general building code enacted by the
9
City, is permitted for all buildings, structures, and portions thereof included in the scope of
this code. "
(22) Table R301. 2(1), Climatic and Geographic Design criteria, is hereby amended to read as
follows :
GROU WIND SEISMIC SUBJECT TO DAMAGE FROM WINTER AIR MEAN FLOOD
NDSN SPEED b DESIGN DESIGN FREEZ- ANN- HAZARDS
Off' CATE- TEMP ING UAL
LOAD GORY INDEX
Weathering' Roof Ice° Frost line Termite Decays g EMP.
Damming depth
30psf 100mph 30 inches Slight to None to + 10 F July 16,
(1436. (161 kph) B Severe No (762mm) Moderate Slight (_ 170 Q 906 48 .4 1979
4pa)
For SI : °C = [(°F)-32]/ 1 . 8 .
a. Weathering may require a higher strength concrete or grade of masonry than necessary to
satisfy the structural requirements of this code . The weathering column is based on the
weathering index (i. e . , "severe") for concrete as determined from the Weathering Probability
Map [Figure R301 .2 (3 )] . The grade of masonry units shall be determined from ASTM C 34,
C 551 C 62 , C 73 , C 90, C 129 , C 145 , C 216 or C 652 .
b . Wind exposure category shall be determined on a site-specific basis in accordance with
Section R301 .2 . 1 .4 .
c . Based on the average daily temperature in January greater than 250 F (40 C) or where the
history of local damage from the effects of ice damming is not substantial.
d. None to slight in accordance with Figure R301 . 2 (7) .
e . Date of the City ' s entry into the National Flood Insurance Program (date of adoption of the
first code or ordinance for management of flood hazard areas), or the date(s) of the currently
effective FIRM and FBFM, or other flood hazard map adopted by the community.
f. 100-year return period air freezing index (BF-days) from Figure R403 . 3 (2) or from the 100-
year (99 percent) value on the National Climatic Data Center data table "Air Freezing Index-
USA Method (Base 32° Fahrenheit) at www.ncdc .noaa. gov/fpsfhtml.
g. Mean annual temperature from the National Climatic Data Center data table "Air Freezing
Index-USA Method (Base 32° Fahrenheit) at www.ncdc .noaa. gov/fpsfhtml ."
(23) Section R301. 2. 1. 5. 2 Basic Wind Speed is hereby added, to read as follows :
"R301 .2. 1 .5.2 Basic Wind Speed. The Special Wind Region as indicated on Figure
R301 .2(4) of this code shall apply using a Basic Wind Speed of 100 miles per hour ( 161
kph) based on the exposure category as described in Section R301 .2 . 1 .4, or the equivalent
pressure thereto . "
10
(24) Section R302. 1 Exterior walls, is hereby amended by adding a new exception #6 to read as
follows :
"6 . Walls of dwellings located within the fire separation distance (location from property
line) of 3 feet to less than 5 feet shall be constructed of siding containing cementitious
materials. "
(25) Table R302. 1 Exterior Walls is hereby amended to read as follows :
TABLE R302 . 1 EXTERIOR WALLS
MINIMUM FIRE- RESISTANCE MINIMUM FIRE
EXTERIOR WALL ELEMENT RATING SEPARATION
DISTANCE
1 HOUR-TESTED IN ACCORDANCE
FIRE- RESISTANCE RATED WITH ASTM E 119 OR UL 263 WITH LESS THAN 3 FEET
WALLS EXPOSURE FROM BOTH SIDES
NOT FIRE RESISTANCE RATED 0 HOURS 3 FEET OR MORE
FIRE- RESISTANCE RATED 1 HOUR ON THE UNDERSIDE 2 TO 3 FEET
PROJECTIONS
NOT ALLOWED N/A LESS THAN 2 FEET
OPENINGS IN NOT ALLOWED N/A LESS THAN 3 FEET
WALLS UNLIMITED 0 HOURS 3 FEET OR MORE
COMPLY WITH SECTION R317 . 3 LESS THAN 3 FEET
PENETRATIONS ALL
NONE REQUIRED 3 FEET OR MORE
(26) Section R302. 2 Townhomes, exception is hereby amended to read as follows :
Exception : A common two-hour fire-resistance-rated wall assembly tested in accordance with
ASTME 119 or UL 263 is permitted for townhouses if such walls do not contain plumbing or
mechanical equipment, ducts or vents in the cavity of the common wall. The wall shall be rated
for fire exposure from both sides and shall extend to and be tight against exterior walls and the
underside of the roof sheathing. Electrical installations shall be installed in accordance with
Chapters 34 through 43 . Penetrations of electrical outlet boxes shall be in accordance with
Section R302 .4 .
(27) Section R302. 2. 1 Continunity is hereby amended to read as follows :
"R302.2. 1 Continuity. The fire-resistance-rated adjoining wall or assembly separating
townhouses along property lines shall be continuous from the foundation to the underside
11
of the roof sheathing, deck or slab. The fire-resistance rating shall extend the full length of
the wall or assembly, including wall extensions through and separating attached enclosed
accessory structures ."
(28) Section R302. 3 Two-family dwellings is hereby amended to read as follows :
"R302.3 Two-family dwellings. Dwelling units in two-family dwellings shall be separated
from each other by wall and/or floor assemblies having not less than a two-hour fire-
resistance rating or by 2 walls of one-hour fire-resistance rating when tested in accordance
with ASTME 119 or UL 263 . Fire-resistance-rated floor-ceiling and wall assemblies shall
extend to and be tight against the exterior wall, and wall assemblies shall extend from the
foundation to the underside of the roof sheathing.
EXCEPTIONS .
1 . A fire-resistance rating of done half-hour shall be permitted in buildings equipped
throughout with an automatic sprinkler system installed in accordance with NFPA 13R.
2 . Wall assemblies in buildings equipped with a fire suppressions system complying with
NFPA 13 , 13R or IRC P2904, need not extend through attic spaces when the ceiling is
protected by not less than 5/8-inch ( 15 . 9 mm) Type X gypsum board and an attic draft stop
constructed as specified in Section R302 . 12 . 1 is provided above and along the wall
assembly separating the dwellings . The structural framing supporting the ceiling shall also
be protected by not less than 1 /2-inch ( 12 . 7 mm) gypsum board or equivalent.
3 . A fire-resistance rating of 1 hour shall be permitted in buildings equipped throughout
with an automatic sprinkler system installed in accordance with Section P2904 ."
(29) Section R304. 2 Other rooms exception is amended to read as follows:
"R304.2 Other rooms. Other habitable rooms shall have a floor area of not less than 70
square feet (6. 5 m 2) .
EXCEPTION .
Kitchens, toilet rooms and bathrooms . "
(30) Section R304. 3 Minimum dimensions exception is amended to read as follows :
"R304.3 Minimum dimensions. Habitable rooms shall not be less than 7 feet (2 . 134 m) in
any horizontal dimension.
EXCEPTION.
Kitchens, toilet rooms and bathrooms . "
12
(31 ) Section R305. 1 Minimum height is hereby amended to read as follows :
"R305. 1 Minimum height. Below grade habitable spaces, hallways, bathrooms, toilet
rooms, laundry rooms and portions of basements containing these spaces shall have a ceiling
height of not less than 84 inches (2134 mm) . Above grade habitable rooms, hallways,
corridors, bathrooms, toilet rooms and laundry rooms shall have a ceiling height of not less
than 90 inches (2,286 mm) . The required height shall be measured from the finish floor to the
lowest projection from the ceiling. "
(32) Section R310. 2 Window Wells is amended by adding a new exception #2 to read as follows :
"2 . With the window in the full open position, the bottom window well step may encroach a
maximum of 12 inches (304 mm) into the minimum horizontal projection, provided the well
meets the following criteria:
(a) The bottom of the well is not less than 36 inches wide (914 mm), centered
horizontally on the openable portion of the emergency escape and rescue door or
window, and
(b) An unobstructed clear horizontal projection of 36 inches (914 mm) is maintained
at the centerline of the openable portion of the emergency escape and rescue door or
window. "
(33) Section R311. 7. 1 Stairways Width Exception is amended to read as follows :
"EXCEPTION :
The width of spiral stairways installed within individual dwelling units shall be in
accordance with Section R311 . 7 . 9 . 1 . "
(34) Section R311. 7. 4 Stair treads and risers, is amended by deleting the second sentence :
"R311 .7.4 Stair treads and risers. Stair treads and risers shall meet the requirements of
this section.
be exclusive of car-pets, rugs or fwmer-s. "
(35) Section R311. 7. 4. 1 Riser height is hereby amended to read as follows :
"R311 .7.4. 1 Riser height. The maximum riser height shall be 7 3/4 inches ( 196 mm), the
minimum riser height shall be not less than 4 inches ( 102 mm) . The riser shall be measured
vertically between leading edges of the adjacent treads . The greatest riser height within any
flight of stairs shall not exceed the smallest by more than 3/8 inch (9 . 5 mm) ."
(36) Section R312. 1. 1 Area well retaining walls, is amended by adding a new section to read as
follows :
"R312. 1 . 1 Area well retaining walls . Where any area well wall, bulkhead enclosure wall or
similar retaining wall or barrier is located less than 36 inches (914 mm) from the nearest
13
intended walking surface, parking surface, or driveway and the surface elevation difference
between the higher and lower side of the well wall, bulkhead enclosure wall, or retaining
wall is greater than 36 inches, such wall shall be protected with guards or be provided with
an equivalent barrier.
EXCEPTION .
1 . The access side of stairways need not be barricaded.
2 . Area wells provided for emergency escape and rescue windows may be protected
with approved grates or covers that comply with Section R310 .4.
3 . Covers and grates may be used over stairways and other openings used exclusively
for service access or for admitting light or ventilation.
4. Area well walls, bulkhead enclosure walls, or retaining walls adjacent to a building
that are located 24 inches (610 mm) or less measured perpendicular from the
building.
5 . Locations where the slope of the embankment or the side of the enclosure or the
opening adjacent to such walls does not exceed 2 horizontal to 1 vertical ."
(37) Section R313 Automatic Fire Sprinkler Systems is hereby amended in its entirety to read as
follows :
R313 . 1 Townhouse automatic fire sprinkler systems design. An automatic residential
fire sprinkler system installed in townhouses shall be designed and installed in
accordance with Section P2904 or NFPA 13R or NFPA 13 .
R313.2 One- and two-family dwellings automatic fire systems design. An automatic
residential fire sprinkler system installed in one and two-family dwellings shall be
designed and installed in accordance with Section P2904 or NFPA 13D .
(38) .Section R314. 3. 1 Alterations, repairs and additions, is hereby amended by deleting
exception #2 .
2 . installation, alteratio " of plumbing oF meehanical systems af:e exempt
the of
ahis seetion.
(39) Section R320. 1 Scope, is hereby amended to read as follows :
"R320. 1 Scope. Where there are €ouf4 or more dwelling units or sleeping units constructed
in a single structure, or when constructed as part of a planned development containing a
total of 7 or more dwelling units, regardless of whether such units are separated by fire-
resistance-rated assemblies, the applicable provisions of Colorado Revised Statutes,
Federal regulations, and the provisions of Chapter 11 of the adopted International Building
Code for Group R-3 shall apply."
(40) Section R322. 1 General is amended to read as follows :
14
"R322. 1 General. Buildings and structures constructed in whole or in part in flood hazard
areas (including A or V Zones) as established in Table R301 .2( 1 ) shall be designed and
constructed in accordance with the provisions contained in this section. In addition to
complying with the provisions of this section, buildings and structures constructed in flood
hazard areas shall be designed and constructed in accordance with the provisions of the
Code of the City, Chapter 10, Flood Prevention and Protection.
In riverine flood hazard areas where design flood elevations are specified but floodways
have not been designated, the applicant shall demonstrate that the cumulative effect of the
proposed buildings and structures on design flood elevations, including fill, when
combined with all other existing and anticipated development, will not increase the design
flood elevation more than one foot at any point within the City. "
(41 ) Section R401. 1 Application is hereby amended to read as follows :
"R401 . 1 Application. The provisions of this chapter shall control the design and
construction of the foundation and foundation spaces for all buildings . In addition to the
provisions of this chapter, the design and construction of foundations in areas prone to
flooding as established by Table R301 . 2( 1 ) shall meet the provisions of Section R322 . All
foundations shall be designed by a qualified professional licensed in the State of Colorado .
Such designs shall be performed in accordance with accepted and approved engineering
practices, including considerations for soil load-bearing capacities, surface and subsurface
water conditions, adequate foundation and floor drainage, adequate ventilation of enclosed
interior foundation spaces, and foundation waterproofing and dampproofing.
EXCEPTION .
Foundations for accessory buildings and minor additions unlikely to be located on expansive,
compressible, or shifting soils, soils of unknown characteristics, or for other valid reasons as
determined by the building official, need not be designed by a licensed professional.
Wood foundations in Seismic Design Category DO, DI or D2 shall be designed in
accordance with accepted engineering practice .
EXCEPTION .
The provisions of this chapter shall be permitted to be used for wood foundations only in the
following situations :
1 . In buildings that have no more than two floors and a roof.
2 . When interior basement and foundation walls are constructed at intervals not
exceeding 50 feet ( 15 240 mm) . "
(42) Section, R401. 5 Placement of Backfill is hereby added to read as follows :
15
"R401 .5 Placement of Backfill. The excavation outside the foundation, including utility
trenches and excavation ramp, shall be backfilled with soil that is substantially free of
organic material, construction debris and cobbles, boulders, and solid soil masses larger
than 6 inches ( 152 mm) diameter; or of frozen soil. The backfill shall be placed in lifts and
compacted as set forth in the engineering documents . The backfill shall be placed in a
manner that does not damage the foundation or the waterproofing or dampproofing
material. Excavation ramps shall be backfilled in such a manner that the ramp does not
become a conduit for surface water to flow toward the foundation. Where excavations
include more than one house, a specially engineered drainage system may be required by
the building official. "
(43) Section R403. 1. 4. ]Frost Protection Exceptions is hereby amended to read as follows :
"EXCEPTIONS :
1 . Freestanding accessory structures with an area of 400 square feet (37 m2) or less and
an eave height of 120 inches (3 . 048 m) or less shall not be required to be protected.
2 . Decks not supported by a dwelling need not be provided with footings that extend
below the frost line . "
(44) Section R405. 1 Concrete or masonry.foundations, is hereby amended to read as follows :
"R405. 1 Concrete or masonry foundations . "Drains consisting of piping conforming
with ASTM Designation D2729- 89 shall be provided adjacent to the lowest concrete or
masonry foundations that retain earth and enclose spaces that are partially or entirely
located below grade. Unless perimeter drains are designed to daylight, they shall terminate
in sump pits with an electrical power source permanently installed within 36 inches (914
mm) of the sump opening. Piping for sump pumps shall discharge at least 60 inches ( 1524
mm) away from foundations or as otherwise approved by the building official. Drains shall
be installed in bedding materials that are of such size and installed in such manner to allow
ground water to seep into the perimeter drain. Filter fabric or other measures to restrict the
passage of fines shall be used to further protect the perimeter drain from blockage .
EXCEPTION .
A drainage system is not required when the foundation is installed on well-drained
ground or sand gravel mixture soils according to the Unified Soil Classification System,
Group I Soils, as detailed in Table R405 , L ',
(45) Section R405. 3 Landscape irrigation, is added to read as follows :
"R405.3 Landscape irrigation. Landscape irrigation systems shall be installed such that
the ground surface within 60 inches ( 1524 mm), measured perpendicular from the
foundation, is not irrigated. "
16
(46) Section R408. 1 Ventilation is hereby amended to read as follows :
"R408. 1 Ventilation. The under-floor space between the bottom of the floor joists and the
earth under any building (except space occupied by a basement) shall have ventilation
openings through foundation walls or exterior walls . All exposed ground surfaces shall be
covered by a Class 1 vapor retarder material. All joints in the retarder shall be overlapped by
6 inches ( 153 mm) and sealed or taped, with the retarder edges extending a minimum of 6
inches ( 153 mm) up the foundation wall and attached and sealed thereto in an approved
manner. The minimum net area of ventilation openings shall not be less than I square foot
(0 . 0929 m2) for each 1 ,500 square feet ( 140 m2) of under-floor space area. One such
ventilating opening shall be within 3 feet (914 mm) of each corner of the building. "
(47) Section R408. 2. 1 Ventilated under floor spaces, is hereby added to read as follows :
"R408.2. 1 Ventilated under-floor spaces. Floor systems above ventilated under-floor
spaces shall be insulated to R-30 in accordance with the adopted International Energy
Conservation Code Table 402 . 1 . 1 . Floor system shall be sealed to prevent heat loss and air
infiltration. "
(48) Section R408. 3 Unvented crawl space, Item 3 is hereby added to read as follows :
"3 . The perimeter walls enclosing un-vented crawl spaces shall be thermally insulated to
R- 10 continuous insulated sheathing or R- 13 batt insulation in accordance with the
adopted International Energy Conservation Code Table 402 . 1 . 1 . "
(49) Section R408. 3. 1 Spaces under below grade floors, is hereby added to read as follows :
"R408.3 . 1 Spaces under below-grade floors . Mechanical ventilation systems for spaces
under below-grade floors shall designed by a professional engineer. "
(50) Section, R408. 6 Finished grade is hereby amended by adding a sentence at the end to read
as follows :
"In areas where expansive or collapsible soils are known to exist, under floor clearances
shall be provided in accordance with the professional designed foundation system."
(51) Section R801. 3 Roof Drainage is hereby amended to read as follows :
"R801 .3 Roof drainage. All dwellings shall have a controlled method of water disposal
from roofs that will collect and discharge all roof drainage to the ground surface at least 5
feet ( 1 . 524 m) from foundation walls or to an approved drainage system. Devices shall not
be installed that restrain in any way or that otherwise interfere with downspout extensions
being fully extended. Landscape edging shall not interfere with the discharge of the roof
drainage system. Downspout extensions shall terminate above ground or at an approved
location."
17
(52) Section R902. 1 Roofing Covering Materials is hereby amended to read as follows :
"R902. 1 Roofing covering materials. Except as otherwise allowed, roofs shall be covered
with materials listed as Class A and with materials as set forth in Sections R904 and R905 .
Classes A, B and C roofing required to be listed by this section shall be tested in accordance
with UL 790 or ASTM E 108 . Roof assemblies with coverings of brick, masonry, slate, clay
or concrete roof tile, exposed concrete roof deck, ferrous or copper shingles or sheets, and
metal sheets and shingles, shall be considered Class A roof coverings .
EXCEPTION .
Any Class B or Class C roof covering may be applied on any new construction that is added
to an existing building, provided the roof extremities of such existing building and new
construction are located a minimum distance of 5 feet ( 1 . 524 m) from the nearest adjacent
property line and are a minimum distance of 10 feet (3 . 048 m) from another building."
(53) Section R905. 2. 8. 3Sidewall Flashing is amended by the addition of an exception to read as
follows :
"EXCEPTION :
For re-roofing where step flashing would require the removal of siding material, provided
adequate flashing is installed. "
(54) Section R905. 2. 8. 5 Drip edge is amended by adding a new section to read as follows :
"R905.2 .8.5 Drip edge. Provide drip edge at eaves and gables of shingle roofs . Overlap to be
a minimum of 2 inches (51 mm) . Eave drip edges shall extend 1 /4 inch (6 .4 mm) below
sheathing and extend back on the roof a minimum of 2 inches (51 mm) . Eave drip edges shall
be installed under the underlayment and the underlayment shall extend over the eave drip
edge a minimum of 1/4 inch. Drip edge shall be mechanically fastened a maximum of 12
inches (305 mm) o .c. Gable drip edges shall be installed over the underlayment."
(55) Section R907. 1 General is hereby amended to read as follows :
"R907. 1 General. Materials and methods of application used for recovering or replacing an
existing roof covering shall comply with the requirements of Chapter 9 . No portion of an
existing nonrated roof covering may be permanently replaced or covered with more than one
square of nonrated roof covering.
EXCEPTIONS .
1 . Reroofing shall not be required to meet the minimum design slope requirement of one-
fourth vertical in 12 units horizontal (2-percent slope) in Section R905 for roofs that
provide positive roof drainage.
18
2 . Any existing roof covering system may be replaced with a roof covering of the same
materials and classification, provided the replacement roof covering has a minimum
rating of Class C . "
(56) Section R1003. 9. 1 Spark arrestors, is hereby amended to read as follows :
"R1003.9. 1 Spark arrestors . Chimneys attached to any appliance or fireplace that burns
solid fuel shall be equipped with an approved spark arrester meeting all of the following
requirements :
1 . The net free area of the arrestor shall not be less than four times the net free area
of the outlet of the chimney flue it serves .
2 . The arrestor screen shall have heat and corrosion resistance equivalent to 19-gage
galvanized steel or 24-gage stainless steel.
3 . Openings shall not permit the passage of spheres having a diameter greater than
1 /2 inch ( 12 . 7 mm) nor block the passage of spheres having a diameter less than
3/8 inch (9 . 5 mm) .
4. The spark arrestor shall be accessible for cleaning and the screen or chimney cap
shall be removable to allow for cleaning of the chimney flue. "
(57) Section R1004. 1 General is hereby amended by adding new sentence at the end to read as
follows :
"Solid fuel fireplaces, fireplace stoves and solid-fuel-type room heaters shall also comply
with Section 5 - 110 of the Code of the City. "
(58) Section R1004. 4 Unvented Gas log Heaters is amended by deleting in its entirety.
R1004.4 Unvented gas log heaters. An unvented gas log heater- shall not be installed in a
faetoi=y built fir-eplaee unless the fir-eplaee system has been speeifieally tested, listed a
labeled for- such use in ac anee with 127 .
(59) Section NII01. LI Thermal design parameters, is amended by adding the following to read
as follows :
"N1101 . 1 . 1 Thermal design parameters. The following thermal design parameters in Table
N1101 . 1 shall be used for calculations required under this chapter.
TABLE N1101 . 1
THERMAL DESIGN PARAMETERS
"CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA
Winter Outdoor, Design Dry-bulb (OF) = 4
Winter Indoor, Design Dry-bulb (OF) = 72
Summer, Outdoor Design Dry-bulb (OF) = 89
19
Summer, Indoor Design Dry-bulb (°F) = 75
Summer, Design Wet-bulb (°F) = 62
Degree days heating = 6368
Degree days cooling = 479
For SL• °C = [(°F)-32]/ 1 . 8 . "
(60) Section M1307. 3 Elevation of ignition source is amended to read as follows :
"Section M1307.3 Elevation of ignition source. Electrical devices, equipment and
appliances having an ignition source shall be elevated such that the source of ignition is not
less than 18 inches (457 mm) above the floor in garages . For the purpose of this section,
rooms or spaces that are not part of the living space of a dwelling unit and that communicate
with a private garage through openings shall be considered to be part of the garage ."
(61) Section, M1401. 3 Sizing and testing is hereby amended to read as follows :
"M1401 .3 Sizing and testing. Heating and cooling equipment shall be sized based on
building loads calculated in accordance with ACCA Manual J, 8"' (or current) Edition or
other approved heating and cooling calculation methodologies . The total sensible capacity of
the cooling equipment shall not exceed the total sensible load by more than 15 percent for
cooling-only applications ; or by more than 25 percent for cold-climate applications in
accordance with the procedures in ACCA Manual J, 8rh (or current) Edition, using thermal
design parameters in Table 302 . L All ducted air-distribution heating and cooling systems
shall be sized using cooling loads . All heating and cooling equipment shall be tested to
ensure such equipment is operating within the manufacturer ' s recommended operating
parameters and standards, including within such parameters and standards for sufficient
combustion, according to the applicable protocols established by the building official and in
accordance with the mechanical code adopted by the City. "
(62) Section, M1414. 1 General is hereby amended to read as follows :
"M1414. 1General. Fireplace stoves shall be listed, labeled and installed in accordance with
the terms of the listing. Fireplace stoves shall be tested in accordance with UL 737. Wood
burning appliances shall meet the latest emission standards as stated by the State of Colorado
and Federal Regulation 40 CFR Part 60, Subpart AAA. "
(63) Section M1501. 1 Outdoor discharge is hereby amended to read as follows :
"M1501 . 1 Outdoor discharge. The air removed by every mechanical exhaust system shall
be discharged to the outdoors such that the exhausted air is not returned indoors by
mechanical ventilating systems . Air shall not be exhausted into an attic, soffit, ridge vent or
crawl space.
EXCEPTION.
20
Whole-house ventilation-type attic fans that discharge into the attic space of dwelling units
having private attics shall be permitted. "
(64) Section M1501. 2 Indoor depressurization is hereby added to read as follows :
"M1501 .2 Indoor depressurization. Ducted exhaust systems shall not induce or create a
negative pressure sufficient to cause backdrafting of naturally vented, open combustion-
chamber, fuel-burning appliances, or create negative pressure in excess of negative 3 Pa. in
the immediate proximity of combustion chambers of such appliances ."
(65) Section M1502. 4. 4. 1 Specified length is hereby amended to read as follows :
"M1502.4.4. 1 Specified length. The maximum length of the exhaust duct shall be 35 feet
( 10668 mm) from the connection to the transition duct from the dryer to the outlet terminal.
Where fittings are used, the maximum length of the exhaust duct shall be reduced in
accordance with Table M1502 .4.4 . 1 . "
(66) Section M1502. 4. 4. 2 Manufacturer 's instructions, is hereby deleted in its entirety.
offieial shall be provided with a eopy of the installation instfuctions fof the make and model.
of the dr-yef at the eaneealment inspeetion. in the absenee of fitfing equivalent length
A11502.4.4.2 Manufneturer' s instruetions. The size and maximum length of the exha
1 shall be us
(67) Section MI601. 1 Duct design is hereby amended to read as follows :
"M1601 . 1 Duct design. Duct systems serving heating, cooling and ventilation equipment
shall be fabricated and sized in accordance with the provisions of this section and ACCA
Manual D or other approved methods . "
(68) Section M1601. 1. 1 Above ground duct systems Item 7. 5 is hereby added to read as follows :
"7 . 5 Stud wall cavities and joist-space plenums used to convey air shall be tested for air-
tightness . "
(69) Section, M1601. 4. 10 Construction debris and contamination is hereby added to read as
follows :
"M1601 .4. 10 Construction debris and contamination . Mechanical air-handling systems
and their related ducts shall be protected from the entrance of dirt, debris, and dust during the
construction and installation process . Prior to passing final inspection or issuance of a
Certificate of Occupancy, such systems shall be substantially free of construction-related
contaminants . "
21
(70) Section G2406. 2 (303. 3) Prohibited locations is hereby amended by deleting exceptions 3 .
and 4.
Unvenled room heater is equipped as specified in Seetion G24 4 5 . 6 and has an iflput Fati
nriterin of Section. G2407 5
not greater- than,enled room heater is equipped as specified in Section G24 4 5 . 6 and has an input Fati
nriterin of Section. G2407 5
(71) Section G2407. 11 (304.11) Combustion air ducts exception to Item, I is hereby amended
to read as follows :
"EXCEPTION :
Where the installation of galvanized steel ducts is not practical due to existing finish
materials within dwelling units that are undergoing alteration or reconstruction,
unobstructed stud and joist spaces shall not be prohibited from conveying combustion air,
provided that not more than one required fireblock is removed. "
This section is hereby further amended by adding item, 9 to read as follows :
"9 . All combustion air openings or ducts shall be readily identifiable with an approved label
or by other means warning persons that obstruction of such openings or ducts may cause
fuel-burning equipment to release combustion products and dangerous levels of carbon
monoxide into the building. "
(72) Section G2408. 2 (305. 3) Elevation of ignition source is hereby amended by deleting the
exception.
as f4ammable vapor- ignition fesist.an.Al
(73) Section G2409. 4. 5 (308. 4. 6) Clearance from supply ducts is hereby amended to read as
follows :
44G2409.4.5 (308.4.6) Clearance from supply ducts. Central-heating furnaces where the
bonnet temperature exceeds 150 T (68 °C), shall have the clearance from supply ducts
within 3 feet (0 . 914 m) of the furnace plenum be not less than that specified from the furnace
plenum. No clearance is necessary beyond this distance. "
(74) Section G2415. 10 (404. 10) Minimum burial depth is hereby amended to read as follows :
22
64G2415. 10 (404. 10) Minimum burial depth. Underground piping systems shall be installed
a minimum depth of 18 inches (457 mm) below grade, except as provided for in Section
G2415 . 9 . 1 . "
(75) Section G2415. 10. 1 (404. 10. 1) Individual outside appliance is hereby amended to read as
follows :
46G2415. 10. 1 (404. 10. 1) Individual outside appliances. Individual lines to outside lights,
grills or other appliances shall be installed a minimum of 18 inches (457 mm) below finished
grade.
EXCEPTION :
Approved materials installed a minimum of 6 inches ( 152 mm) below finished grade when
covered with a concrete slab 4 inches ( 102 mm) in minimum thickness . "
(76) Section G2415. 13 (404. 13) Outlet closure is hereby amended to read as follows :
64G2415. 13 (404. 13) Outlet closures. Gas outlets and fittings which allow for future gas line
expansion that do not connect to appliances shall be provided with an approved gas shutoff
valve with the end capped gas tight."
(77) Section G2416. 1 (405. 1) General is hereby amended to read as follows :
64G2416. 1 (405. 1) General. Changes in direction of rigid metallic pipe specified in G2414 .4
shall be made only by the use of fittings and factory bends. "
(78) Section G2416. 2 (405. 2) Metallic pipe is hereby deleted in its entirety.
_ .
2) A4etallie pipe. Metallie poe bends shall eemply with the fell i �
1 . Bends shall be made only with bending tools and pffocedufes intended fof that purpose,
2 . All bends shall be smooth and free from buekling, ef-aeks or- othef ewideiiee of meeha-niea4
3 . The longitudinal weld of the jgtpe shall be meaf the neu4r-al wEis of the belid.
4 .
dn O l 11 1 1 l (� l (� / l)
/1 Pipe
shall
not e bent
thfo g an
fife o More than
90 degrees
( 6 r-a
5 . The inside radius of a bead shall be not less than six tifnes the eu4side diameter- of the poe.
(79) Section G2417. 4. 1 (406. 4. 1) Test pressure is hereby amended to read as follows :
64G2417.4. 1 (406.4. 1) Test pressure. The test pressure to be used shall be not less than one
and one-half times the proposed maximum working pressure, but not less than 10 psig (67
kPa gauge) irrespective of design pressure. Where the test pressure exceeds 125 psig (862
kPa gauge), the test pressure shall not exceed a value that produces a hoop stress in the
piping greater than 50 percent of the specified minimum yield strength of the pipe. "
23
(80) Section G2420. 5. 2 (409. 5. 2) Vented decorative appliances and room heaters is hereby
amended to read as follows :
"G2420.5.2 (409.5.2) Vented decorative appliances and room heaters. Shutoff valves for
vented decorative appliances, room heaters and decorative appliances for installation in
vented fireplaces shall be permitted to be installed in an area remote from the appliances
where such valves are provided with ready access . Such valves shall be permanently
identified and shall serve no other appliance. Remote valves shall be operable on the same
floor as the appliance served and within 12 feet (3 . 658 m) of the appliance as measured along
the floor line. The piping from the shutoff valve to within 6 feet ( 1829 mm) of the appliance
shall be designed, sized and installed in accordance with Sections G2412 through G2419 ."
(81) Section G2421. 3 (410. 3) Venting of regulators is hereby amended to read as follows :
"G2421 .3 (410.3) Venting of regulators. Pressure regulators that require a vent shall have
an independent vent to the outside of the building. The vent shall be designed to prevent the
entry of water or foreign objects . Vents shall not terminate within 3 feet (0 . 916 m) of
openings into the building. "
(82) Section G2425. 8 (501. 8) Appliances not required to be vented is hereby amended by
deleting item 7 .
I • Room heaters listed fef tinvented
e •
(83) Section G2439. 1 (614. 1) Installation is hereby amended to read as follows :
64G2439. 1 (614. 1) Installation. Clothes dryers shall be exhausted in accordance with the
manufacturer' s instructions . Dryer exhaust systems shall be independent of all other systems
and shall convey the moisture and any products of combustion to the outside of the building.
Dryer exhaust duct terminations shall not be located within 36 inches (914 mm) of exterior
openings into conditioned spaces, crawl spaces, and attic spaces . "
(84) Section G2439. 5. 5. 2 (614. 6 5. 2) Manufacturer 's instructions, is hereby deleted in its
entirety.
G2439s5*5*2 (614.6.5.2) 1%lanufaeturer-' s instruetions. The maximum length of the exhaust
duet shall be deteEmined by the dfyer- manufaetufer-' s installation instfuetiefts . The co
offieial shall be provided with a. eopy of the installation instruetions fof the make and fno
of the dffiyen Whefe the exhaust duet is to be eeneealed, the installation instfuetions shall be
be ,
(85) Section G2445 (621), UNVENTED ROOMHEATERS, is hereby deleted in its entirety.
24
UNVENTED ROOM HEATERS
21 . 11 .2 and shall be installed in aeeorclanee with the eonditions of the listing and th
C2445.2 (621 . 2) Prohibited use. One or- ffiefe HH+7eHted reeni heaters shall not be used as
the
sole Coulee of
eomfoft heating
In /1 4 elfinR UH4
b'
Unvented room heaters shall not have an input fating in
excess of 40 , 000 Rf, . /b, ( 1 1 '7 L\\ l
appliaHees. installed in a room of spaee shall not exeeed 20 &H/h per- eHbie fiee� (0 .21
is installed is dir-eedy eenneeted to another- room of spaee by a door-way, afehway or- ethef
g of eompafable size that eannot be elosed, the volume of sueh adjaeent room of! space
shall be pefmitted to be ineludead in the ealetilations .
G2445. 6 (621 .6) O"Tgeft depletion safety system. bWvewed i-0079i hea�er-s shall
with an oxygen depletion sensitive safiDty shutoff system. The system shall shut off
the gas supply to the main and 'pilo� bHr*er-s when the w�gen in the sttffetmdin,9,, atmosphere.
is depleted to the per-eeiA coneetAfation specified by the manufacturer-, but not lower- than 18
point at which the system aets to shut off the gas supply to the room heater
tested,specifically listed and labeled for- such use in aecor-danee with UL •
(86) Section G2447. 6 Kitchens with gas ovens is hereby added to read as follows :
"G2447.6 Kitchens with gas ovens . Kitchens with gas ovens shall be supplied with an
exhaust system vented to the outside. Ducts serving kitchen exhaust systems shall not
terminate in an attic or crawl space or areas inside the building and shall not induce or create
a negative pressure in excess of negative 3 Pa or adversely affect gravity-vented appliances . "
(87) Section P2713. 3 Bathtub and whirlpool bathtub valves, is amended by adding the
exception to read as follows :
25
"EXCEPTION :
Bathtubs and whirlpool bathtubs without connected showers . "
(88) APPENDIX E, MANUFACTURED HOUSING USED AS DWELLINGS, is hereby
adopted in its entirety.
(89) APPENDIX F, RADON CONTROL METHODS, is hereby adopted and amended in its
entirety to read as follows :
""Appendix F — RADON CONTROL METHODS
SECTION AF101 TITLE, SCOPE AND PURPOSE
AF101 . 1 Title. These provisions shall be known as Appendix Chapter F, the FORT COLLINS
RADON RESISTANT CONSTRUCTION CODE FOR ONE- AND TWO-FAMILY DWELLINGS,
and shall be cited as such and will be referred to herein as this appendix.
AF101 .2 Scope. The provisions of this appendix shall apply to new one- and two-family
dwellings completely separated from adjacent dwellings by unobstructed physical space
(detached) and multiple, attached single-family dwellings (townhouses) not more than three
stories in height and with each townhouse having its own separate means of egress.
AF01 .3 Purpose. The purpose of this appendix is to provide minimum requirements to enhance
the public safety, health and general welfare, through construction methods designed and
installed to resist entry of radon gas into the occupied spaces of buildings regulated by this
appendix.
SECTION AF102
DEFINITIONS
AF102 . 1 General. For the purpose of these requirements, the terms used shall be defined as
follows :
DWELLING UNIT, SINGLE-FAMILY DETACHED. An independent building completely
separated from adjacent dwellings by unobstructed physical space, exclusively containing one
dwelling unit located entirely on a separately recorded and platted parcel of land (site) bounded
by property lines, and which parcel is deeded exclusively for such single-family dwelling .
DWELLING UNIT, TWO-FAMILY DETACHED. An independent building completely
separated from adjacent dwellings by unobstructed physical space, exclusively containing two
dwelling units located entirely on a separately recorded and platted parcel of land (site) bounded
by property lines, and which parcel is deeded exclusively for such two-family dwelling.
FOUNDATION DRAIN SYSTEM. A continuous length of drain tile, perforated pipe, or filter
26
mat extending around all or part of the internal or external perimeter of a basement or crawl
space footing designed to collect and drain away excess subsurface water.
RADON. A naturally occurring, chemically inert, radioactive gas that is not detectable by human
senses and can move readily through particles of soil and rock and can accumulate under the
slabs and foundations of homes where it can easily enter the living space through construction
cracks and openings .
SOIL-GAS-RETARDER. A continuous membrane of 3 -mil (0 . 075 mm) cross-linked
polyethylene or other equivalent material used to retard the flow of soil gases into a building.
SUBFLOOR. A concrete slab and other approved permanent floor system that directly contacts
the ground and is within the walls of the living spaces of the building.
SUB-MEMBRANE DEPRESSURIZATION SYSTEM. A system designed to achieve lower
sub-membrane air pressure relative to crawl space air pressure by use of a vent drawing air from
beneath the soil-gas-retarder membrane .
SUB-SLAB DEPRESSURIZATION SYSTEM (Passive). A system designed to achieve lower
sub- slab air pressure relative to indoor air pressure by use of a vent pipe routed through the
conditioned space of a building and connecting the sub-slab area with outdoor air, thereby
relying on the convective flow of air upward in the vent to draw air from beneath the slab .
TOWNHOUSE. A single-family dwelling unit constructed as part of a group of two or more
attached individual dwelling units, each of which is separated from the other from the foundation
to the roof and is located entirely on a separately recorded and platted parcel of land (site)
bounded by property lines, and which parcel is deeded exclusively for such single-family
dwelling.
SECTION AF103 REQUIREMENTS
AF103 . 1 General. The following required construction methods are intended to resist radon
entry and prepare the building for post-construction radon mitigation (see Figure AF 102) .
AF103 .2 Subfloor preparation. A layer of gas-permeable material shall be placed under all
subfloors . The gas-permeable layer shall consist of one of the following methods except that
where fills of aggregate size less than that described in Method Tare used beneath a slab, Method
293 , 4, or 5 must be used.
I . A uniform layer of clean aggregate, a minimum of 4 inches ( 102 mm) thick. The aggregate
shall consist of material that will pass through a 2-inch (51 mm) sieve and be retained by a
1 /4 -inch (6 .4 mm) sieve . In buildings where interior footings or other barriers separate sub-
grade areas, penetrations through the interior footing or barrier equal to a minimum of 12
square inches (0 . 094 m2) per 10 feet (3 . 048 m) of barrier length shall be provided. A
minimum of two penetrations shall be provided per separation and be evenly spaced along
the separation.
27
EXCEPTION :
In buildings where interior footings or other barriers separate the sub-grade area, separate
radon vent pipes may be installed for each sub-grade area as specified in Section
AF 103 . 5 .2 in lieu of penetrations through the barrier.
2 . A foundation drain pipe system installed under concrete floor slab areas less than 2,000
square feet ( 186 m2), consisting of a continuous loop of minimum 3 -inch (76 mm.) diameter
perforated pipe shall be laid in the sub-grade with the top of pipe located 1 inch (25 .4 mm)
below the concrete slab . The pipe may be rigid or flexible but shall have perforations fully
around the circumference with a free air space equal to 1 . 83 square inches per square foot
( 127 cm2/ m2) of exterior pipe surface area. Such pipe shall be wrapped with approved filter
material to prevent blocking of pipe perforations . The pipe loop shall be located inside of the
exterior perimeter foundation walls not more than 12 inches (305 mm) from the perimeter
foundation walls . In buildings where interior footings or other barriers separate the sub-
grade area, the loop of pipe shall penetrate, or pass beneath such interior footings or barriers .
For slab areas greater than 2 ,000 square feet ( 186 m2) but less than 4,000 square feet (372
m2), the preceding configuration may be used provided a minimum of 4-inch diameter ( 102
mm) pipe is installed. Slabs in excess of 4,000 square feet (372 m2) shall have under them
separate loops for every additional 2,000 square feet ( 186 m2) of slab area when 3 -inch (76
mm) diameter pipe is used; or, slabs may have separate loops provided for each additional
increment in area between 2,000 square feet ( 186 m2) and 4,000 square feet (372 m2) when 4-
inch ( 102 mm) diameter pipe is used.
3 . A foundation drain soil gas collection mat system installed under concrete floor slab areas of
2 ,000 square feet ( 186 m2) or less, consisting of a continuous rectilinear loop of soil gas
collection mat or drainage mat having minimum dimensions of 1 inch in height by 12 inches
in width (25 .4 mm in height x 305 mm in width) and a nominal cross-sectional air flow area
of 12 square inches (0. 0078 m2) may be laid on top of the sub-grade. The mat shall be
constructed of a matrix that allows for the movement of air through it and be capable of
supporting the concrete placed upon it. The matrix shall be covered by approved filter
material on all four sides to prevent dirt or concrete from entering the matrix. All breaches
and joints in the filter material shall be repaired prior to the placement of the slab . The loop
shall be located inside the exterior perimeter foundation walls and within 12 inches (305 mm)
from the perimeter foundation walls. In buildings where interior footings or other barriers
separate the sub-grade area, the mat shall penetrate these interior footings or barriers to form
a continuous loop around the exterior perimeter.
Slabs larger than 2,000 square feet ( 186 m2) but less than 4,000 square feet (372 m2) shall
have under them an additional strip of mat that bisects the loop forming two areas
approximately equally divided by the two halves of the rectilinear loop . Slabs larger than
4,000 square feet (372 m2) shall have separate loops for each 2,000 ( 186 m2) square feet; or,
increased to 4,000 square feet (372 m2) when a loop is bisected as specified in the preceding
configuration.
28
4. A uniform layer of sand (native or fill), a minimum of 4 inches ( 102 mm) thick, overlain by a
layer or strips of geo-textile drainage matting designed to allow the lateral flow of soil gases .
5 . Other materials, systems or floor designs with demonstrated capability to permit
depressurization across the entire sub-floor area.
AF103 .3 Entry routes. Potential radon entry routes shall be closed in accordance with Sections
AF 103 . 3 . 1 through AF 103 . 3 . 11 .
AF103.3 . 1 Floor openings. Openings around bathtubs, showers, water closets, pipes,
wires or other objects that penetrate concrete slabs or other floor assemblies shall be
filled with a polyurethane caulk or equivalent sealant applied in accordance with the
manufacturer' s recommendations .
AF103.3 .2 Concrete joints. All control joints, isolation joints, construction joints and any
other joints in concrete slabs or between slabs and foundation walls shall be sealed with a
caulk or sealant. Gaps and joints shall be cleared of loose material and filled with
polyurethane caulk or other elastomeric sealant applied in accordance with the
manufacturer' s recommendations .
AF103.3 .3 Condensate drains. Condensate drains shall be trapped or routed through non-
perforated pipe to daylight.
AF103.3.4 Sumps. Sump pits open to soil or serving as the termination point for sub-slab
or exterior drain tile loops shall be covered with a gasketed or otherwise sealed lid. Sumps
used as the suction point in a sub-slab depressurization system shall have a lid designed to
accommodate the vent pipe . Sumps used as a floor drain shall have a lid equipped with a
trapped inlet and view port.
AF103 .3.5 Foundation walls. Hollow block masonry foundation walls shall be
constructed with either a continuous course of solid masonry, one course of masonry
grouted solid, or a solid concrete beam at or above finished ground surface to prevent
passage of air from the interior of the wall into the living space . Where a brick veneer or
other masonry ledge is installed, the course immediately below that ledge shall be sealed.
Joints, cracks or other openings around all penetrations of both exterior and interior
surfaces of masonry block or wood foundation walls below the ground surface shall be
filled with polyurethane caulk or equivalent sealant. Penetrations of concrete walls shall
be filled.
AF103.3 .6 Dampproofing. The exterior surfaces of portions of concrete and masonry
block walls below the ground surface shall be damp-proofed in accordance with Section
R406 of this appendix.
AF103.3 .7 Air-handling units. Air-handling units in crawl spaces shall be sealed to
prevent air from being drawn into the unit.
29
EXCEPTION :
Units with gasketed seams or units that are otherwise sealed by the manufacturer to
prevent leakage .
AF103.3.8 Ducts. Ductwork passing through or beneath a slab shall be of seamless
material unless the air-handling system is designed to maintain continuous positive
pressure within such ducting. Joints in such ductwork shall be sealed to prevent air
leakage . Ductwork located in crawl spaces shall have all seams and joints sealed by
closure systems in accordance with Section M1601 . 3 . 11
AF103 .4 Sub-membrane depressurization system. In buildings with interior structural floors
directly above under-floor spaces containing exposed soil surfaces that are not protected by a
sub-slab depressurization system, the following components of a sub-membrane depressurization
system shall be installed during construction.
EXCEPTION :
Buildings in which an approved mechanical ventilation system complying with Section
R408 or such other equivalent system that provides equivalent depressurization across the
entire sub-membrane area as determined by the building official is installed in the under-
floor spaces .
AM 03 .4. 1 Ventilation. Crawl spaces and similar under-floor spaces shall be provided with
ventilation complying with Section R408 .
AF103 .4.2 Soil-gas-retarder. The exposed soil in under-floor spaces shall be covered with a
continuous layer of soil-gas-retarder. Such ground cover joints shall overlap 6 inches ( 152
mm) and be sealed or taped. The edges of the ground cover shall extend a minimum of 6
inches ( 152mm) up onto all foundation walls enclosing the under-floor space and shall be
attached and sealed to foundation walls in an approved manner.
AF103.4.3 Vent pipe riser. A plumbing tee or other approved connection shall be inserted
horizontally beneath the sheeting and connected to a 3 - or 4-inch-diameter (76 mm or 102
mm) fitting with a vertical vent pipe installed through the sheeting. The vent pipe shall be
extended up through the building floors, terminate at least 12 inches (305 mm) above the roof
in a location at least 10 feet (3 . 048 m) away from any window or other opening into the
conditioned spaces of the building that is less than 2 feet (0 . 610 m) below the exhaust point,
and 10 feet (3 . 048 m) from any window or other opening in adjoining or adjacent buildings .
AF103 .5 Sub-slab depressurization system. The following components of a sub-slab
depressurization system shall be installed during construction under basement or slab-on-grade
floors .
AF103 .5. 1 Vent pipe riser. A minimum 3 -inch-diameter (76 mm) ABS or PVC DWV pipe,
30
or equivalent gas-tight pipe shall be embedded vertically into the sub-slab aggregate or other
permeable material before the slab is cast. A "T" fitting or equivalent method shall be used
to ensure that the pipe opening remains within the sub-slab permeable material.
Alternatively, the 3 -inch (76 mm) pipe shall be inserted directly into an interior perimeter
drain tile loop or through a sealed sump cover where the sump is exposed to the sub-slab
aggregate or connected to it through a drainage system.
All vent pipes shall be extended up through the building floors and terminate at least 12
inches (305 mm) above the surface of the roof in a location at least 10 feet (3 . 048 m) away
from any window, air intake, or other opening into the conditioned spaces of the building that
is less than 2 feet (0. 610 m) below the exhaust point, and 10 feet (3 .048 m) from any window
or other opening in adjoining or adjacent buildings. The discharge end of vent pipe
terminations shall be unobstructed and protected from small animal entry with a corrosion-
resistant screen having openings between . 25 inch (6 .4 mm) and . 5 inch ( 12 . 7 mm) .
AF103 .5.2 Multiple vent pipes. In buildings where interior footings or other barriers
separate the sub-slab aggregate or other gas-permeable material, each area shall be fitted with
an individual vent pipe. Vent pipes shall connect to a single vent that terminates above the
roof or each individual vent pipe shall terminate separately above the roof.
AF103 .6 Vent pipe drainage. All components of the radon vent pipe system shall be installed to
provide positive drainage to the ground beneath the slab or soil-gas retarder.
AF103 .7 Vent pipe accessibility. Radon vent pipes shall be accessible for fan installation
through an attic or other area outside the habitable space .
EXCEPTION .
The radon vent pipe need not be accessible in an attic space where an approved roof-top
electrical supply is provided.
AF103 .8 Vent pipe identification and notification. All exposed and visible interior radon vent
pipes shall be conspicuously identified with at least one label on each floor and in attics provided
with access openings . The label shall read substantially as follows : Radon Reduction System. In
addition to the preceding label, a notice shall be placed in a conspicuous area near the vent pipe
that states the following :
THIS RADON REDUCTION SYSTEM IS NOT REQUIRED TO BE TESTED AND IS A
(PASSIVE) SYSTEM, RELYING ENTIRELY ON NATURAL VENTILATION.
OCCUPANTS ARE ADVISED TO TEST FOR RADON AND TAKE REMEDIAL
ACTION AS NECESSARY BY INSTALLING A CONTINUOUSLY-OPERATING FAN
LOCATED IN THE VENT PIPE (ACCESS TYPICALLY PROVIDED IN THE ATTIC)
AND CONNECTED TO THE NEARBY PROVIDED ELECTRICAL OUTLET. Call
1 - 800-767-RADON FOR MORE INFORMATION.
AF103 .9 Combination foundations. Combination basement/crawl space or slab-on-grade/crawl
31
space foundations shall have separate radon vent pipes installed in each type of foundation area.
Each radon vent pipe shall terminate above the roof or shall be connected to a single vent that
terminates above the roof.
AF103 . 10 Building depressurization. Joints in air ducts and plenums in unconditioned spaces
shall be substantially air tight and permanently sealed with an approved sealant, mastic, or other
approved methods . Thermal envelope air infiltration requirements shall comply with the energy
conservation provisions in the energy conservation code currently enacted by the City.
Firestopping shall be in conformance with the most recent general building code enacted by the
City or meet the requirements contained in Section R602 . 8 .
AF103 . 11 Provisions for future depressurization fan installation. Permanent provisions
shall be made for the future installation of an in-line fan to be connected to every radon vent
pipe . Such designated fan locations shall be outside of the conditioned envelope of the building,
such as in the attic, garage and similar locations, excluding crawl spaces and other interior under-
floor spaces. Designated locations shall accommodate an unobstructed permanent cylindrical
space with the following minimum dimensions : 12 inches (305 mm) measured radially around
the radon vent pipe along a vertical distance of 30 inches (760 mm) . Designated fan locations
shall be permanently accessible for servicing and maintenance. An electrical circuit shall be
provided within 4 feet ( 1 .219 m) of and within sight from designated fan locations. Such circuit
shall have a means of positive disconnection and be terminated in an approved electrical outlet in
accordance with the applicable current electric code .
AF103 . 12 Depressurization fan system activation. When a passive system as constructed in
accordance with this appendix is to be converted to an active system, an approved in-line fan
shall be installed in a designated fan location as specified in Section AF103 . 11 . 1 . Additionally,
an approved permanent electric light fixture and in-line pipe couplings that facilitate fan
replacement shall be provided. The in-line fan shall be designed to operate continuously for a
period of not less than five years and have a minimum air-flow rating as established by the
building official. A readily accessible manometer or other approved warning device that notifies
occupants of a fan malfunction by a visible or audible signal shall be installed within the
dwelling unit. A separate permit shall be required for installation of such fan when it is not
installed at the time the building is originally approved for occupancy."
(90) APPENDIX G, SWIMMING POOLS, ,SPAS, AND HOT TUBS, is hereby adopted in its
entirety.
(91) Section AG 105.6 Barrier around decorative pools, fountains, and ponds is hereby
added to read as follows :
"AG105.6 Barriers around decorative pools, fountains, and ponds. Decorative pools,
fountains, and ponds which can contain water deeper than 24 inches (610 mm), shall be
protected by barriers installed in accordance with section AG105 .2 . "
(92) APPENDIX H, PATIO COVERS, is hereby adopted in its entirety.
32
(93) APPENDIX J, EXISTING BUILDINGS AND STRUCTURES, is hereby adopted in its
entirety.
Introduced, considered favorably on first reading, and ordered published this 7th day of
September, A.D . 2010, and to be presented for final passage on the 21st day of September, A.D .
2010 ,
Mayor
ATTEST :
City Clerk
Passed and adopted on final reading on the 21st day of September, A. D . 2010 .
Mayor
ATTEST :
City Clerk
33
ORDINANCE NO , 101 , 2010
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING CHAPTER 5 , ARTICLE IV OF THE CODE OF THE CITY OF FORT
COLLINS FOR THE PURPOSE OF REPEALING THE 2003 INTERNATIONAL
MECHANICAL CODE, AND ADOPTING THE 2009 INTERNATIONAL
MECHANICAL CODE, WITH AMENDMENTS
WHEREAS , since 1924, the City has reviewed, amended and adopted the latest
nationally recognized building standards available for the times; and
WHEREAS , upon recommendation of City staff, the City Council has determined that it
is in the best interests of the City to align the five interconnected basic construction codes under
one publication year; and
WHEREAS , the five interconnected basic construction codes are the International
Building Code, International Residential Code, International Mechanical Code, International
Fuel Gas Code, and International Energy Conservation Code; and
WHEREAS, the City Council has determined that the 2009 publication year of the five
interconnected basic construction codes ought to be adopted and that their counterpart codes
previously adopted should be repealed both in order to align the publication years of the codes
and also because the 2009 publications contain improvements in construction code regulation;
and
WHEREAS , City staff has conducted a significant public outreach program, working
with the regulated construction industry and building professionals ; and
WHEREAS , the adoption of the five interconnected basic construction codes has been
presented to and recommended by the Affordable Housing Board, the Commission on Disability,
the Air Quality Advisory Board, the Natural Resources Advisory Board, the Building Review
Board, the Electric Board, the Landmark Preservation Commission and the Water Board; and
WHEREAS , the City Council has determined that it is in the best interest of the health,
safety and welfare of the City and its citizens that the 2003 International Mechanical Code, as
amended be repealed and that in its place, the 2009 International Mechanical Code be adopted,
with amendments .
NOW, THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY OF
FORT COLLINS as follows :
Section 1 . That Section 5 - 106 of the Code of the City of Fort Collins is hereby
amended to read as follows :
Sec . 5- 106. Adoption of standards.
Pursuant to the power and authority conferred on the City Council by Section 31 - 16-202,
C .R. S , and Article II, Section 7 of the Charter, the City Council hereby repeals the 2003
International Mechanical Code (2003 IMC) and adopts, as the mechanical code of the City the
1
=1070=32009 International Mechanical Code, (2PO-32009 IMC), published by the International Code
Council, which shall have the same force and effect as though set forth hefein in full herein. The
subject matter of the 20032009 International Mechanical Code, (240-32009 IMC), adopted
herein includes comprehensive provisions and standards regulating and controlling the design,
construction, installation, quality of materials, location, operation and maintenance of heating,
ventilating, cooling and refrigeration systems, incinerators, miscellaneous heat-producing
appliances for the purposes of protecting public health, safety and general welfare .
Section 2 . That Section 5 - 107 Code of the City of Fort Collins is hereby repealed and
reenacted to read in its entirety as follows :
Sec. 5407 Amendments and deletions to code.
The 2009 International Mechanical Code adopted herein is hereby amended in the following
respects :
(1) Section 101. 1 Title is amended to read as follows :
"101 .1 Title. These regulations shall be known as the Mechanical Code of the City of
Fort Collins, hereinafter referred to as "this code. "
(2) Section 102. 8 Referenced codes and standards, is amended to read as follows :
"Section 102.8 reference codes and standards The codes and standards referenced
herein shall be those that are listed in Section 101 .4, entitled ` Referenced Codes ' of the
adopted International Building Code and shall be considered part of the requirements of
this code to the prescribed extent of each such reference . Where differences occur
between provisions of this code and referenced codes and standards, the provisions of this
code shall apply. "
(3) Section 103 Department of Mechanical Inspection is hereby amended in its entirety to read
as follows :
"SECTION 103 — CODE ADMINISTRATION
103 . 1 Entity charged with code administration shall be as determined in accordance
with Section 103 , entitled ` Code Administration' of the adopted International Building
Code. "
(4) Section 106. 5 Fees is hereby amended in its entirety to read as follows :
"SECTION 106.5 FEES
106. 5 Payment of fees . All items relating to fees shall be as specified and in accordance
with Section 109 , entitled `Fees ' of the adopted International Building Code. "
2
(5) Section 106. 5. 1 Work commencing before permit issuance is amended to read as follows :
"Section 106. 5. 1 Work commencing before permit issuance. In addition to penalties
set forth in Section 108 .4, any person or firm who, before obtaining the necessary
permit(s) , commences any construction of, or work on, a building, structure, electrical,
gas, mechanical or plumbing system that is not otherwise exempted from obtaining a
permit, shall be subject to a processing and penalty fee in addition to the standard
prescribed permit fee. Such additional fee shall be equal to the permit fee, except that
such fee shall not be less than $50 nor more than $ 1 ,000 for the first such violation. A
person or firm committing the same such violation repeatedly is subject to processing and
penalty fees equal to double the amount of the permit fee or double the amount of the
preceding violation, whichever is greater, for every same such violation committed
thereafter within any 180-day period. The foregoing fees may be appealed to the City
Manager pursuant to Chapter 2 , Article VI of the Code of the City. "
(6) Section 108. 4 Violation Penalties, is hereby amended to read as follows :
" 108.4 Violation penalties. Any person who violates a provision of this code or fails to
comply with any of the requirements thereof or who erects, constructs, alters or repairs a
building or structure in violation of the approved construction documents or directive of
the building official, or of a permit or certificate issued under the provisions of this code,
shall be guilty of a misdemeanor subject to the penalties and fines pursuant to Section 1 -
15 of the Code of the City, punishable by a fine of not more than $ 1 ,000 . 00 dollars, or by
imprisonment not exceeding 180 days, or both such fine and imprisonment. Each day that
a violation continues after due notice has been served shall be deemed a separate
offense . "
(7) Section 109 Means ofAppeal is hereby amended in its entirety to read as follows :
" 109. 1 General. Appeals of decisions, determinations and interpretations of this code
shall be made pursuant to applicable provisions as set forth in Section 113 , entitled
` Board of Appeals ' of the adopted International Building Code. "
(8) Section 504. 1 Installation is hereby amended by deleting the exception:
"504. 1 Installation. Clothes dryers shall be exhausted in accordance with the
manufacturer's instructions . Dryer exhaust systems shall be independent of all other
systems and shall convey the moisture and any products of combustion to the outside of
the building."
Exeeptione This section shall not apply to &�ed and labeled condensing (ductles-S)
610thes dre e fs
(9) Section 504. 6. 4. 2 Manufacturer 's instructions, is amended by deleting in its entirety:
be deteFmined by the dr-yeF manufactuer-' s installation instmetions . The code official
shall be pr-ovided with a eepy of the installation instfuetions for- the make and medel e
the df!yef. Where the exhaust duet is to be eoneealed, the installation instfuctions shall be
equivalent length ealculations from the clothes df!yef manu:fiietufef, Table 504 . 6 . 4 . 1 shall
be use .
(10) Section 506. 3. 10. 4 Duct enclosure not required is hereby amended by deleting in its
entirety;
506.3 . 10.4 Duet enelosure not required. A duet enclosure shall not be required fo
grease "et that penetfates only a non. fifen fesistwnee f=;#Wed. feegeeiling assembly.
(11) Section 512. 1 General is hereby amended to read as follows :
"512. 1 General. When a subslab soil exhaust system is provided, the duct for such
system shall conform to the requirements of Section 1211 , entitled ` Radon-Resistant
Construction ' of the adopted International Building Code. "
( 12) Section 602. 3 Stud cavity and joist space plenums, is hereby amended by adding item #6 to
read as follows :
"6 . Such cavities shall be tested for air-tightness in accordance with Section 403 .2 .2 ,
entitled ` Sealing ' of the adopted International Energy Conservation Code. "
(13) Section 603. 18 Construction debris and contamination is hereby added to read as follows :
"603. 18 Construction debris and contamination. Mechanical air-handling systems and
their related ducts shall be protected from the entrance of dirt, debris, and dust during the
construction and installation process . Prior to passing final inspection or issuance of a
Certificate of Occupancy, such systems shall be substantially free of construction-related
contaminants . "
(14) Section 607. 4 Access and identification is hereby amended to read as follows :
"607.4. Fire and smoke dampers shall be provided with an approved means of access,
large enough to permit inspection and maintenance of the damper and its operating parts .
The access shall not affect the integrity of fire-resistance-rated assemblies . The access
openings shall not reduce the fire-resistance-rating of the assembly. Access points shall
be permanently identified on the exterior of the damper and located without the removal
of finish ceiling works by a label having red letters not less than 0 . 5 inch ( 12 . 7 mm) in
height reading : SMOKE DAMPER or FIRE DAMPER. Access doors in ducts shall be
tight-fitting and suitable for the required duct construction. "
(15) Section 801. 19 Multi-story prohibited is hereby amended to read as follows :
"801 . 19 Multi-story prohibited. Common venting systems for appliances located on
more than one floor level shall be prohibited, except engineered systems where all of the
4
appliances served by the common vent are located in rooms or spaces that are accessed
only from the outdoors . The appliance enclosures shall not communicate with the
occupiable areas of the building. "
(16) Section 903. 1. 1 Solid fuel fireplaces and appliances is added to read as follows :
"903. 1 . 1 Solid fuel fireplaces and appliances. Solid fuel fireplaces, fireplace stoves and
solid-fuel-type room heaters shall also comply with Section 5 - 110 of the Code of the
City.
11
(17) Section 903 .3 Unvented gas logs heaters, is deleted in its entirety:
903 .3 Unvented gas log heaters. An unvei�Aed gas log heater- shall not be installed in
labeled for- such use ceo ce with 27 .
Introduced, considered favorably on first reading, and ordered published this 7th day of
September, A.D . 2010, and to be presented for final passage on the 21st day of September, A.D .
2010 ,
Mayor
ATTEST :
City Clerk
Passed and adopted on final reading on the 21 st day of September, A.D . 2010 .
Mayor
ATTEST :
City Clerk
5
ORDINANCE NO , 1029 2010
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING CHAPTER 5 , ARTICLE IV OF THE CODE OF THE
CITY OF FORT COLLINS FOR THE PURPOSE OF REPEALNG THE 2003
INTERNATIONAL FUEL GAS CODE AND ADOPTING THE
2009 INTERNATIONAL FUEL GAS CODE, WITH AMENDMENTS
WHEREAS , since 1924, the City has reviewed, amended and adopted the latest
nationally recognized building standards available for the times; and
WHEREAS , upon recommendation of City staff, the City Council has determined that it
is in the best interests of the City to align the five interconnected basic construction codes under
one publication year; and
WHEREAS , the five interconnected basic construction codes are the International
Building Code, International Residential Code, International Mechanical Code, International
Fuel Gas Code, and International Energy Conservation Code; and
WHEREAS, the City Council has determined that the 2009 publication year of the five
interconnected basic construction codes ought to be adopted and that their counterpart codes
previously adopted should be repealed both in order to align the publication years of the codes
and also because the 2009 publications contain improvements in construction code regulation;
and
WHEREAS , City staff has conducted a significant public outreach program, working
with the regulated construction industry and building professionals ; and
WHEREAS , the adoption of the five interconnected basic construction codes has been
presented to and recommended by the Affordable Housing Board, the Commission on Disability,
the Air Quality Advisory Board, the Natural Resources Advisory Board, the Building Review
Board, the Electric Board, the Landmark Preservation Commission and the Water Board; and
WHEREAS , the City Council has determined that it is in the best interest of the health,
safety and welfare of the City and its citizens that the 2003 International Fuel Gas Code, as
amended be repealed and that in its place, the 2009 International Fuel Gas Code be adopted,
with amendments .
NOW, THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY OF
FORT COLLINS as follows :
Section 1 . That Section 5 - 111 of the Code of the City of Fort Collins is hereby
amended to read as follows :
Sec. 5-111 . Adoption of standards for fuel gas piping, equipment and accessories.
Pursuant to the power and authority conferred on the City Council by Section 31 - 16-202,
C .R. S . , and Article II, Section 7 of the Charter, the City Council hereby repeals the 2003
1
International Fuel Gas Code (2003 IFGC) and adopts as the fuel gas code of the City, the
200332009 International Fuel Gas Code (2003 IFGC), published by the International Code
Council which shall have the same force and effect as though set forth in full herein4n-fttl. The
subject matter of the 2003-2009 International Fuel Gas Code (20032009 IFGC) adopted herein
includes comprehensive regulations governing the design, installation, maintenance, alteration
and inspection of fuel gas piping systems , fuel gas utilization equipment and related accessories
for the purposes of protecting public health, safety and general welfare .
Section 2 . That Section 5 - 112 Code of the City of Fort Collins is hereby repealed and
reenacted to read in its entirety as follows :
Sec. 5412 Amendments and deletions to code.
The 2009 International Fuel Gas Code adopted herein is hereby amended in the following
respects :
(1) Section 101. 1 Title is amended to read as follows :
"101 . 1 Title. These regulations shall be known as the Fuel Gas Code of the City of Fort
Collins, hereinafter referred to as "this code . "
(2) Section 102. 8 reference codes and standards, is amended to read as follows :
"Section 102.8 reference codes and standards The codes and standards referenced
herein shall be those that are listed in Section 101 .4, entitled ` Referenced codes ' of the
adopted International Building Code and shall be considered part of the requirements of
this code to the prescribed extent of each such reference . Where differences occur
between provisions of this code and referenced codes and standards, the provisions of this
code shall apply. "
(3) Section 103 Department of inspection is amended in its entirety to read as follows :
"SECTION 103 — CODE ADMINISTRATION
103. 1 Entity charged with code administration shall be as determined in accordance
with Section 103 , entitled ` Code Administration' of the adopted International Building
Code. "
(4) Section 106. 6 Fees is amended in its entirety to read as follows :
"SECTION 106.6 FEES
106.6 Payment of fees. All items relating to fees shall be as specified and in accordance
with Section 109 , entitled ` Fees ' of the adopted International Building Code. "
(5) Section 108. 4 Violation penalties, is amended to read as follows :
2
" 108.4 Violation penalties. Any person who violates a provision of this code or fails to
comply with any of the requirements thereof or who erects, constructs, alters or repairs a
building or structure in violation of the approved construction documents or directive of
the building official, or of a permit or certificate issued under the provisions of this code,
shall be guilty of a misdemeanor subject to the penalties and fines pursuant to Section 1 -
15 of the Code of the City, punishable by a fine of not more than $ 1 ,000, or by
imprisonment not exceeding 180 days, or both such fine and imprisonment. Each day that
a violation continues after due notice has been served shall be deemed a separate
offense . "
(6) Section 108. 4. 1 Work commencing before permit issuance is hereby added to read as
follows :
" 108.4. 1 Work commencing before permit issuance. In addition to the penalties set
forth in 108 .4, any person or firm who, before obtaining the necessary permit(s),
commences any construction of, or work on, a building, structure, electrical, gas,
mechanical or plumbing system that is not otherwise exempted from obtaining a permit,
shall be subject to a processing and penalty fee in addition to the standard prescribed
permit fee. Such additional fee shall be equal to the permit fee, except that such fee shall
not be less than $50 nor more than $ 1 ,000 for the first such violation. A person or firm
committing the same such violation repeatedly is subject to processing and penalty fees
equal to double the amount of the permit fee or double the amount of the preceding
violation, whichever is greater, for every same such subsequent violation committed
thereafter within any 180-day period. The foregoing fees may be appealed to the City
Manager pursuant to Chapter 2 , Article VI of the Code of the City. "
(7) Section 303. 3 Prohibited locations is amended by deleting Exceptions " 3 " and " 4 "
eritorin of Section 304 5
ented room heateF is equipped as sp.. eeified in Section 621 . 6 and has an input rating
not g e-ate-1=41-, a„ 10,000 T2 1. (2 . 93 k I I ) The bedroom qL •, 1-crllmeet tt3G�equir •f voluro
nritorin of
Section. 304
(8) Section 304. 11 Combustion air ducts item #1 exception is amended to read as follows :
"EXCEPTION :
Where the installation of galvanized steel ducts is not practical due to existing finish
materials within dwelling units that are undergoing alteration or reconstruction,
unobstructed stud and joist spaces shall not be prohibited from conveying combustion air,
provided that not more than one required fireblock is removed. "
3
(9) Section 304. 11 Combustion air ducts, is amended by adding item #9 to read as follows :
"9 . All combustion air openings or ducts shall be readily identifiable with an approved
label or by other means warning persons that obstruction of such openings or ducts may
cause fuel-burning equipment to release combustion products and dangerous levels of
carbon monoxide into the building. "
(10) Section 305. 3 Elevation of ignition source is amended to read as follows :
"305.3 Elevation of ignition source. Electrical devices, equipment and appliances having
an ignition source shall be elevated such that the source of ignition is not less than 18
inches (457 mm) above the floor in hazardous locations and public garages, private
garages, repair garages, motor fuel-dispensing facilities and parking garages . For the
purpose of this section, rooms or spaces that are not part of the living space of a dwelling
unit and that communicate directly with a private garage through openings shall be
considered to be part of the private garage. "
(11) Section 305. 3 Elevation of ignition source is amended by deleting the exception:
Exeeption ! Elevation of the ignifion souree is not required for appliances that are lisie
(12) Section 308. 4. 6 Clearance from supply ducts is amended to read as follows :
"308.4.6 Clearance from supply ducts. Central-heating furnaces where the bonnet
temperature exceeds 150°F (68 °C), shall have the clearance from supply ducts within 3 feet
(914 mm) of the furnace plenum be not less than that specified from the furnace plenum.
No clearance is necessary beyond this distance ."
(13) Section 404. 7Above ground piping outdoors is amended to read as follows :
"404.7 Above-ground piping outdoors. All piping installed outdoors shall be elevated not
less than 6 inches ( 152 mm) above ground and where installed across roof surfaces, shall
be elevated not less than 3 '/2 inches (89 mm) above the roof surface . Piping installed above
ground, outdoors, and installed across the surface of roofs shall be securely supported and
located where it will be protected from physical damage. Where passing through an outside
wall, the piping shall also be protected against corrosion by coating or wrapping with an
inert material. Where piping is encased in a protective pipe sleeve, the annular space
between the piping and the sleeve shall be sealed. "
(14) Section 404. 10 Minimum burial depth is amended to read as follows :
"404. 10 Minimum burial depth. Underground piping systems shall be installed a
minimum depth of 18 inches (457 mm) below grade, except as provided for in Section
404 . 10 . 1 . "
(15) Section 404. 10. 1 Individual outside appliances, is amended to read as follows :
4
"404. 10. 1 Individual outside appliances. Individual lines to outside lights, grills or other
appliances shall be installed a minimum of 18 inches (457 mm) below finished grade.
EXCEPTION .
Approved materials installed a minimum of 6 inches ( 152 mm) below finished grade
when covered with a concrete slab 4 inches ( 102 mm) in minimum thickness. "
(16) Section 404. 13 Outlet closure is amended to read as follows :
"404. 13 Outlet closures. Gas outlets and fittings which allow for future gas line expansion
that do not connect to appliances shall be provided with an approved gas shutoff valve with
the end capped gas-tight.
EXCEPTION.
1 . Listed and labeled flush-mounted-type quick disconnect devices and listed and labeled
gas convenience outlets shall be installed in accordance with the manufacturer' s
installation instructions.
2 . Drip/dirt legs installed at the floor level at appliances ."
(17) Section 405.1 General is amended to read as follows :
"405. 1 General. Changes in direction of rigid metallic pipe specified in Section 403 .4 shall
be made only by the use of fittings and factory bends ^r . P1H.1
(18) Section 405. 2 Metallic pipe is deleted in its entirety:
405.2AIetallie ..�Metallic pipe bends sh-allcomply with the following-
1 . BRe.n.d.s" s:h�all. bea, ffl.�Adev only with bending tools and pr-oeedufoUs" iffl.tefldead for- that purpose .
2 . All bends siia1l be smooth and f"ee 4'cti—rro mbuckling, r-ac s or- vtheF evidence—oi
damage.
Z . The longitudinal
ongitu in l well of
the pipe shall
be ne-af the neutral axis of
the l�o r. it
7A Tip e shall l f 9 1
5 . The- inside radius of a bend shall be not less than six times the outside diameter- of the
(19) Section 406. 4. 1 Test pressure is hereby amended to read as follows :
"406.4. 1 Test pressure. The test pressure to be used shall be not less than one and one-half
times the proposed maximum working pressure, but not less than 10 psig (67 kPa gauge)
irrespective of design pressure. Where the test pressure exceeds 125 psig (862 kPa gauge),
the test pressure shall not exceed a value that produces a hoop stress in the piping greater
than 50 percent of the specified minimum yield strength of the pipe. "
5
(20) Section 409. _5. 2 Vented decorative appliances and room heaters is amended to read as
follows :
"409.5.2 Vented decorative appliances and room heaters. Shutoff valves for vented
decorative appliances, room heaters and decorative appliances for installation in vented
fireplaces shall be permitted to be installed in an area remote from the appliances where
such valves are provided with ready access . Such valves shall be permanently identified
and shall serve no other appliance . Remote valves shall be operable on the same floor as
the appliance served and within 12 feet (3 . 66 m) of the appliance as measured along the
floor line . The piping from the shutoff valve to within 6 feet ( 1829 mm) of the appliance
shall be designed, sized and installed in accordance with Sections 401 through 408 ."
(21) Section 410. 3 Venting of regulators is amended to read as follows :
"410.3 Venting of regulators. Pressure regulators that require a vent shall be vented
directly to the outdoors . The vent shall be designed to prevent the entry of insects, water
and foreign objects . Vents shall not terminate within 3 feet (0 . 916 m) of openings into the
building."
(22) Section 501. 8 Appliances not required to be vented is amended by deleting items #8
and # 10 :
Q Room heaters liafed for- unyente use.
! 0 . Other appliances Ayted for unvented use and not provided with Qde collars .
(23) Section 503. 2. 2 Well-ventilated spaces, is hereby deleted.
space ,503 . 2 .2 Well ventilated spnees. Whefe located in a lafge and well ventilated
into the space
(24) Section 503. 5. 61 Chimney lining is hereby amended by deleting the exception :
503 . 5.6. 1 Chimney lining. Chimneys shall be lined in accordance with NFPA 211 .
ExeeptionE M4iefe an existing chinuiey complies with Sections 503 . 5 . 6 thfough 503 . 5 .
and its sizimn � in 1�
�efdanee with Seetion 503 . 5 . 5 , its eentinued use shall be allowed
Wher-e the appliance vented by such ehinuiey is replaeed by an applianee of similar- type,
input fating and effieieiie�L-.
(25) Section 614 Exhaust installation is amended to read as follows :
"614.4 Exhaust installation. Exhaust ducts for clothes dryers shall terminate on the
outside of the building and shall be equipped with a backdraft damper. Dryer exhaust duct
6
terminations shall not be located within 36 inches (914 mm) of exterior openings into
conditioned spaces, crawl spaces and attics. Screens shall not be installed at the duct
termination. Ducts shall not be connected or installed with sheet metal screws or other
fasteners that will obstruct the flow. Clothes dryer exhaust ducts shall not be connected to a
vent connector, vent or chimney. Clothes dryer exhaust ducts shall not extend into or
through ducts or plenums. "
(26) Section 614. 6. 5. 2 Manufacturer 's instructions is deleted in its entirety :
shall be detefmined by the dfyer- manufaetur-er-' s installation instructions . The code- official
dr-yef. Wher-e the exhaust duet is to be coneealed, the installation inst-Fuctions shall be
��IlWalent length calculations ftom the clothes dryer- manufaetufer-, Table 614 . 6 . 5 . 1 shall be
utilized.
(27) Section 621 Unvented rooin heaters, is deleted in its entirety.
621 . 1 General. Unvented foom heatefs shall be tested in aeeofdanee with ANSI Z21 . 11 .2
afld sliall be installed in aeeer-danee with the eenditiefis of the listing and the
manu�fiieturer ' s installation instfuctions . Unvented room heaters utilizing, fuels othef tha
fuel gas shall be mgula4ed by the IWeFH6ffiOH6qI AkehaHiedl "� de.
621 .3 input rating. Unvented Foom heaters shall not have an input rating in excess o
nn nnn Btul ( 11 . 7 via»
oce ancies in GFoups A, E and 1 . The location of unvented room heaters shall also comply
installed in a r-oom or spaee shall not exceed 20 Bt" per- eubie foot (207 NWM3 ) of Volume
difectly connected to another room or space by a door-way, areh-w.a�,F or- other- opening o
pe-fmitte to be included
it the calculations
621 .6 Oxygen depletion safety system. Unvented Foom heateFs shall be equipped with
to the main and pilot bufaer-s when the oxygen in the suffetifiding atmosphere is depleted to
the per-cent eoneentfation speeified by the manufaeturer-, but not lower- than 18 pefeent. The
system shall not ineor-por-ate field adjustment ffielans eapable of ehaiiging the set point a
s hie that system arts to shift off the eras supply to the room heate f
be installed i.. faetei=y bttih fit%plaee unless the ftr-.�Waee system has been speeifieally
tested, lSted and labeled for such casein aeeordannee with 127 .
deeefative room heatefs shall be liqed as eemplyi.B.g with ANSI Z21 . 91 .
(28) Section 623. 3. 1 Gas oven ventilation is added to read as follows :
"623.3. 1 Gas oven ventilation. Residential kitchens with gas ovens shall be supplied with
an exhaust system vented to the outside . Ducts serving kitchen exhaust systems shall not
terminate in an attic or crawl space or areas inside the building and shall not induce or
create a negative pressure in excess of negative 3 Pa or adversely affect gravity-vented
appliances . "
(29) Section 630. 3 Combustion and ventilation air is amended to read as follows :
"630.3 (IFGS) Combustion and ventilation air. Where umod infrared heaters are
installed, natural or mechanical means shall provide outdoor ventilation air at a rate of not
less than 4 cfm per 1 ,000 Btu/h (0 . 38 m3/min/kW) of the aggregate input rating of all such
heaters installed in the space. Exhaust openings for removing flue products shall be above
the level of the heaters. "
Introduced, considered favorably on first reading, and ordered published this 7th day of
September, A.D . 2010, and to be presented for final passage on the 21 st day of September, A.D .
2010.
Mayor
ATTEST :
City Clerk
8
Passed and adopted on final reading on the 21st day of September, A. D . 2010 .
Mayor
ATTEST :
City Clerk
9