HomeMy WebLinkAbout084 - 05/19/1998 - REPEALING AND REENACTING CHAPTER 5, DIVISION 2 OF THE CITY CODE FOR THE PURPOSE OF ADOPTING THE 1997 ORDINANCE NO. 84, 1998
OF THE COUNCIL OF THE CITY OF FORT COLLINS
REPEALING AND REENACTING CHAPTER 5, DIVISION 2
OF THE CODE OF THE CITY OF FORT COLLINS
FOR THE PURPOSE OF ADOPTING THE
1997 UNIFORM BUILDING CODE, WITH AMENDMENTS
WHEREAS, the current building code adopted by City is based on the Uniform Building
Code, 1991 Edition, published by the International Conference of Building Officials (ICBO), as
enacted in March 1994; and
WHEREAS, ICBO members from across the country and around the world, who meet
annually for the express purpose of developing a completely revised model building code every three
years, have published the 1997 Uniform Building Code as the most recent edition; and
WHEREAS,the communities of Berthoud, Fort Collins, Loveland and Wellington,and the
Larimer County government, for the first time have undertaken a joint review of the new model
building code for the express purpose of exploring opportunities for developing county-wide
standardized amendments, where possible, to be enacted contemporaneously; and
WHEREAS,a Code Review Task Group comprised of code officials from the participating
jurisdictions, builders and architects from the Larimer County region, the Home Builders'
Association of Northern Colorado,Building Review Board members and Commission on Disability
members, has completed a six-month review of the 1997 Uniform Building Code and the proposed
amendments; and
WHEREAS, the Affordable Housing Board, the Building Review Board, and the
Commission on Disability have made certain recommendations with respect to the adoption of the
1997 Uniform Building Code and the proposed amendments; 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 1997 Uniform Building
Code, as amended, be adopted.
NOW, THEREFORE BE IT ORDAINED BY THE COUNCIL OF THE CITY OF FORT
COLLINS that Chapter 5, Article II, Division 2 of the Code of the City of Fort Collins be repealed
and reenacted to read as follows:
Sec. 5-26. Adoption of standards.
(a) There is hereby adopted by reference as the building code of the city, the
1997 Uniform Building Code, Volumes 1, 2, and 3, published by the International
Conference of Building Officials, as if 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 for the purpose of protecting the public health,safety and
general welfare.
(b) The Fort Collins Energy Code for Commercial, Industrial, and High-Rise
Buildings, based on the Codification of ASHRAE/IES 90.1-1989, Energy Efficient
Design ofNew Buildings Except Low-Rise Residential Buildings, 1993,promulgated
by the American Society of Heating,Refrigerating,and Air-Conditioning Engineers,
Inc. and the Illuminating Engineering Society of North America,and as amended by
the city, is hereby adopted by reference.
(c) The Model Energy Code, 1995 Edition, promulgated by the Council of
American Building Officials,as amended by the city,is hereby adopted by reference.
See. 5-27. Amendments and deletions to code.
The 1997 Uniform Building Code, adopted herein is hereby amended in the
following respects:
(1) Sections 105.1 and 105.2 are amended to read in their entirety as follows:
"105.1 General. The Building Review Board (hereafter 'Board") as
established in Section 2-117 of the Code of the City of Fort Collins 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 and to the suitability of alternate materials or alternate methods
of construction. 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.
"105.2 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 105.4, 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
alternate design, alternate materials and/or the alternate 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
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official was erroneous, or when the Board determines an alternate design,
alternate materials and/or the alternate 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 alternate
design, alternate materials and/or alternate methods of construction. A
quorum of four (4) members shall be necessary for any meeting of the
Board.
(2) New sections, Section 105.3 and Section 105.4, are added to read as
follows:
"105.3 Fees and Notification. Persons desiring to appeal to the Board
any decision of the building official as provided in this section 105, shall,
at the time of filing such appeal, pay to the city a filing fee in the amount
of fifty dollars ($50.). Written notice of hearings shall be given to the
Appellant and, with respect to requests for exceptions or variances
authorized pursuant to Section 1101.1 of this code, to the secretary to the
Commission on Disability, at least three (3) days prior to the hearing by
mailing the same to such party's last known address by regular U.S. mail.
"105.4 Limitations. The Building Review Board shall have no authority
with respect to any the following functions:
1. the administration of this code;
2. waiving requirements of this code, except as provided for
pursuant to this Section 105;
3. modifying the applicable provisions of,or granting variances
to this code, or approving the use of alternate designs,
alternate materials and/or alternate methods of construction
except as provided for in this Section 105 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."
(3) Section 106.2 is amended in the following respects:
(a) Item I thereof is amended to read in its entirety as follows:
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"1. Detached accessory buildings used for playhouses, lawn and
garden equipment storage, tool storage and similar uses
provided such buildings do not exceed one hundred twenty
(120) square feet of floor area nor eight(8) feet in height, do
not house flammable liquids in quantities exceeding ten(10)
gallons per building and are constructed entirely of
noncombustible materials when located less than three (3)
feet from an adjoining property line."
(b) Item 8 thereof is amended to read in its entirety as follows:
1t8. Painting, repairing, wallpapering, texturing, cabinetry and
similar finish or cosmetic work."
(c) Item 10 thereof is amended to read in its entirety as follows:
"10. Window awnings on Group R, Division 3 and Group U
Occupancies projecting not more than 54 inches (1372 min),
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."
(d) Item ]] thereof is amended to read in its entirety as follows:
"11. Prefabricated portable swimming or wading pools,hot tubs or
spas accessory to a Group R,Division 3 Occupancy when the
walls are entirely above grade and contain water no more than
twenty-four(24) inches deep."
(e) Items 12 through 15 are added to read as follows:
"12. Exterior walks,driveways,parking lots except as required for
facility accessibility by Chapter 11.
"13. Roofing repair or replacement work not exceeding one square
of covering per building.
"14. Replacement of nonstructural siding on buildings classified as
Group R Division 3 and Group U Occupancies.
"15. Minor work valued at less than five hundred dollars ($500.)
and not involving alteration of bearing walls, structural or
fire-rated assemblies, plumbing, electrical or mechanical
components or fire-extinguishing systems."
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(4) Section 107.3 is amended by adding three exceptions to the first paragraph
thereof to read as follows:
"EXCEPTIONS:
"1. After a plan review fee is collected as specified above for a
building or structure to be constructed by a contractor
licensed by the city and plans are subsequently submitted for
another essentially identical building or structure as
determined by the building official, a complete plan review
need not be performed on said subsequent plans. Such
identical sets of plans submitted for each building permit shall
be accompanied by a plan verification fee equal to one dollar
($1.) per one thousand dollars ($1,000.) of valuation or
fraction thereof for each building valued up to and including
ten million dollars ($10,000,000). For each building valued
more than ten million dollars($10,000,000.),such fee shall be
equal to ten thousand dollars ($10,000.) plus five cents
($0.05.) for each additional thousand dollars ($1,000.) of
valuation or fraction thereof.
112. Plan review as required herein may be performed by an
approved qualified individual or firm, provided that such
individual or firm submits satisfactory proof of performance.
A plan verification fee shall be assessed equal to that
specified in the preceding Exception 1 in lieu of the plan
review fee as prescribed in this Section.
113. Plans submitted for projects which do not involve significant
structural work, electrical systems, plumbing systems,
mechanical systems, or which do not exceed three thousand
dollars($3,000.)in valuation are exempt from the plan review
fee as specified herein."
(5) Section 108.5.5 is amended to read in its entirety as follows:
"108.5.5 Lath or gypsum board inspection. To be made only on walls
which are part of a fire-resistive assembly or structural diaphragm after all
lathing and gypsum board, exterior and interior, is in place, but before any
plastering is applied or before gypsum board joints and fasteners are taped
and finished."
(6) Section 109.1 is amended by revising the exception thereto to read as
follows:
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"EXCEPTION: U Occupancies"
(7) Table No.]-A, Building permit fees, is amended to read in its entirety as
follows:
"The building permit fee prescribed herein shall be calculated according to
the following schedule except that no such fee shall be less than fifteen
dollars ($15.):
TABLE NO. 1-A
BUILDING PERMIT FEES
Total Valuation Fee'2
$1 to$500 $15.
$501 to$2,000 $10 for the first$500 plus$1.50 for each additional
$100 or fraction thereof to and including$2,000.
$2,001 to$25,000 $32.50 for the first$2,000 plus$6 for each additional
$1,000 or fraction thereof to and including$25,000.
$25,001 to$50,000 $170.50 for the first$25,000 plus$4.50 for each
additional$1000 or fraction thereof to and including
$50,000.
$50,001 to$100,000 $283 for the first$50,000 plus$3 for each additional
$1,000 or fraction thereof to and including$100,000.
$100,001 to$10,000,000 $433 for the first$100,000 plus$2.50 for each
additional$1,000 or fraction thereof.
$10,000,001 and greater $25,183 for the first$10,000,000 plus$0.10 for each
additional $1000 or fraction thereof.
Other Inspections and Fees
Inspections outside of normal business $50 per hour;minimum business hours
hours
Reinspection fee assessed under the $50 each
provisions of Section 108.8
Inspections for which no fee is specifically $50 per hour;minimum charge of one hour
indicated
Additional plan reviewrequired bychanges, $50 per hour;minimum charge of one hour
additions or revisions to approved plans
The permit fees stated in the above table shall be increased thirty-five percent(35%) for those
projects which also include any of the plumbing, electrical or mechanical permits issued under a
single combined permit. Such increases shall be considered to be full payment of permit fees
described in other regulations adopted by the city for issuance of individual plumbing, electrical
and mechanical permits.
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z The permit fees stated in the above table for the construction of a residential building shall be
reduced by$75 when an approved total energy systems analysis method is utilized to demonstrate
that such building is in compliance with the energy code adopted by the city."
(8) Section 203-B is amended by replacing the definition of "BUILDING
OFFICIAL" with the following:
"BUILDING OFFICIAL is the person designated by the City Manager
who is charged with the administration and enforcement of this code,or the
building official's authorized representative."
(9) Section 207-F is amended by replacing the definition of"FAMILY' with
the following:
"FAMILY is defined as set forth in the zoning regulations of the city."
(10) Section 219-R is amended by adding a new definition to read as follows:
'ROOM, SLEEPING (BEDROOM) is a habitable room within a
dwelling unit designed primarily for the purpose of sleeping. Built-in
features such as closets and similar storage facilities shall not be considered
as relevant factors in determining whether or not a room is a sleeping
room."
(11) Section 310.6.1 is amended by adding an exception to the first paragraph
thereof to read as follows:
"EXCEPTION: A habitable basement room which is accessory to a
dwelling unit located above may have a ceiling height of seven (7) feet
(2134 mm) as measured from the floor to finish ceiling. Projections such
as beams, piping and ducts shall not reduce the ceiling height to less than
seventy-eight(78)inches (1981 mm)."
(12) Section 310.9.1.2 is amended to read in its entirety as follows:
"310.9.1.2 Additions, alterations or repairs to Group R Occupancies.
When one (1) 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."
(13) Section 310.10 is amended by revising the first sentence thereof in entirety
to read as follows:
"Group R, Division 1 Occupancies shall be provided with a manual and
automatic fire alarm system in apartment houses three or more stories in
height or containing more than 16 dwelling units, in hotels three or more
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stories in height or containing 20 or more guest rooms and in congregate
residences three or more stories in height or having an occupant load of 20
or more."
(14) Table No. 3-B -- Required Separation in Buildings of Mixed Occupancy
(Hours), is amended in the following respects:
(a) A new footnote "6", is added to read as follows:
i6 For licensed home occupations as defined in the zoning regulations
of the city that are located in a Group R Occupancy, no separation
is required."
(b) The entry in the 'B"row under the "R-3"column and the entry in the
"R-3"row under the "S-2"column are amended to read as follows:
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(15) Section 503.1 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
503.3 for assumed property lines between buildings located on the same
property, are maintained."
(16) Section 505.3 is amended by adding a paragraph thereto to read as follows:
"The provisions of this subsection for area increases may apply to
residential buildings under the conditions specified in Section 907 of this
code."
(17) Section 506 is amended by revising the last sentence thereof to read as
follows:
"See Chapters 3 and 4 and Section 907 for special occupancy provisions."
(18) Section 508 is amended in the following respects:
(a) An exception is added to the first sentence thereto to read as follows:
"EXCEPTION: An automatic sprinkler system installed as an
alternate to providing fire containment areas as specified in Chapter
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9 may be used as a substitution for one-hour fire-resistive
construction throughout."
(b) New text is added to the beginning of the second sentence thereof to
read as follows:
"Except as otherwise provided in Section 907 of this code, . . . ."
(19) Section 509.1 is amended by adding a second paragraph to read as follows:
"All area wells, stair wells and light wells attached to any building that are
located less than thirty-six (36) inches from the nearest intended walking
surface and deeper than thirty-six(36)inches below the surrounding ground
level, creating an opening with a horizontal dimension greater than
twenty-four(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:
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 310.4 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."
(20) Section 711.6 is amended by adding an exception thereto to read as follows:
"EXCEPTION:
"Concealed laundry chutes located within individual dwelling units
need not be enclosed as specified above provided all of the following
conditions are met:
1. The chute is no more than four(4) square feet in cross-sectional
area, and
2. The chute is constructed of not less than No. 26 gauge,
corrosion-resistant sheet steel, and
3. Openings are protected with self-closing doors constructed of not
less than No. 26 gauge corrosion-resistant sheet steel, 1 3/8-inch
thick solid-core wood or equivalent material, and
4. The chute does not pass through more than two (2) floors."
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(21) Section 712 is amended by revising Exception 1 to read as follows:
1. Such enclosures need not be provided in Group R, Division 3 and
Group U Occupancies; and in individual dwelling units of Group R,
Division 1, occupancies."
(22) Section 903 is amended by the addition of three new definitions to the list
of terms therein in alphabetical sequence of such list to read as follows:
"ADJACENT DWELLING UNIT is a dwelling unit which adjoins
another dwelling unit at some point or along a common line.
"APPROVED RESIDENTIAL-TYPE FIRE SPRINKLER SYSTEM
is an automatic fire protection system capable of applying water to fire in
accordance with the performance criteria of Poudre Fire Authority for
design, installation and maintenance.
"FIRE CONTAINMENT AREA is a portion of a story or basement which
is totally enclosed by a smoke and draft barrier of not less than 1-hour
fire-resistive construction and as prescribed herein. All door openings
penetrating such fire-containment areas shall be protected by tight-fitting
smoke and draft control assemblies as specified in Section 1004.3.4.3.2.1
except that such doors shall be automatic closing by actuation of a smoke
detector in accordance with Section 713.2. All duct penetrations shall be
protected by dampers complying with Section 1004.3.4.3.2.3 with a
minimum leakage classification of III, except that such dampers shall be
automatic closing by actuation of a smoke detector. Openings other than
doors and ducts shall be protected as specified in Section 1004.3.4.3.2 and
shall be limited to a maximum of twenty-five (25) percent of any one (1)
wall. Self-closing devices may be used in lieu of automatic closing devices
on doors unlikely to be fixed open during normal conditions.Examples are
doors at toilet room,vertical stairways,closets and small storage rooms and
similar areas."
(23) Section 904.1.3, is amended to read in its entirety as follows:
"Modifications. When residential sprinkler systems as set forth in UBC
Standard 9-3 are provided, exceptions to, or reductions in, code
requirements based on the installation of an automatic fire-extinguishing
system shall not be allowed except as otherwise provided."
(24) Section 904.2.2 is amended in the following respects:
(a) The first sentence thereof is revised to read as follows:
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"Except for Group R, Division 3 and Group U, Divisions 1 and 2
Occupancies, an automatic sprinkler system shall be installed in all
buildings which are not divided into fire containment areas as
specified in Table 9-13; and as follows:"
(b) Item 1 is amended by adding an exception to the first paragraph
thereof to read as follows:
"EXCEPTION:
An automatic fire extinguishing system shall not be required in
a Group R, Division 1 basement, provided that the following
conditions exist:
1. The basement area is accessory to and incorporated within an
individual dwelling unit.
2. The individual basement area does not exceed one thousand
five hundred (1,500) square feet of floor area.
3. The individual dwelling unit is separated by one-hour
fire-resistive construction."
(25) Section 904.2.9 is amended by revising the first sentence thereof to read as
follows:
"An automatic sprinkler system shall be installed throughout every
apartment house three or more stories in height or containing more than 16
dwelling units, every congregate residence three or more stories in height
or having an occupant load of 20 or more, and every hotel three or more
stories in height or containing 20 or more guest rooms."
(26) A new section,Section 907, is added to Chapter 9 to read as follows:
"SECTION 907--RESIDENTIAL-TYPE FIRE SPRINKLER
SYSTEMS
"907.1 General. The purpose of this section is to provide alternate
equivalent fire protection for residential occupancies by the use of fast
response fire sprinkler technology. When approved residential-type fire
sprinklers are installed in accordance with Poudre Fire Authority design
criteria in residential buildings, the design and construction modifications
of this Section may be applied. Occupancies eligible for review under this
Section are those occupancies defined as R-1 or R-3 and their accessory U
occupancies.Provisions of this Section shall not be applicable to residential
buildings of four (4) or more stories or more than fifty-five (55) feet in
height.
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"907.2 Increases in Maximum Allowable Building Dimensions and
Fire-resistive or Specialized Construction Substitutions. Allowable
building dimensions may be increased and fire-resistive and specialized
construction in eligible buildings as specified in Section 907.1 may be
substituted with an approved residential-type fire sprinkler system in the
following cases:
I. For an increase in allowable floor area as permitted in Section 505.3.
2. For an increase in allowable building height or in the number of
stories as permitted in Section 506.
3. For type of construction as permitted in Section 508.
4. In lieu of fire-resistive construction in dwelling unit separations and
storage and laundry rooms as specified in Section 310.2.2.
5. To allow the one-story increase permitted in Section 506 to be
compounded with increases for either allowable area or fire-resistive
construction.
6. In lieu of a fire alarm system as specified in the Uniform Fire Code,
provided each dwelling unit has its primary exit directly to the
exterior,to an exterior exit balcony,to an exterior exit stairway,or to
an exterior exit ramp.
7. To allow non-rated construction of Group R, Division I occupancies
more than two (2) stories in height or having more than three
thousand(3,000)square feet of floor area above the first story and as
limited in Section 907.1.
8. To allow the maximum aggregate area of a mezzanine to 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 507.
9. In lieu of Fire Containment Areas as specified in Section 904.2.2 and
Table 9-B.
10. To allow non-rated exterior walls, exterior openings, and exterior
projections in lieu of protection of such elements which are otherwise
restricted due to proximity to property lines as specified in Chapter 5.
11. In lieu of the one-hour fire-resistive separation of boiler or central
heating plant rooms in Group R, Division 1 occupancies from the rest
of the building.
"907.3 Exits and Corridors. Every building or portion thereof shall be
provided with exits as required by Chapter 10; except that in an eligible
building as specified in Section 907.1 in which an approved residential-type
fire sprinkler system is installed, the following conditions are permitted:
1. The second story may be provided with one (1) exit when the
occupant load does not exceed fifteen(15)or the number of dwelling
units does not exceed five (5), whichever is least restrictive.
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2. Occupants on the third story may have access to one (1) conforming
exit when all exits are exterior and continue directly to grade level
and when a single exit serves no more than two(2)dwelling units on
the third story.
3. Walls, ceilings and floors of corridors in Group R, Division 1
occupancies shall be required to be one-hour, fire-resistive
construction when serving an occupant load of thirty (30) or more.
4. Door openings in corridors serving an occupant load of more than ten
(10), but less than thirty (30), may be provided with either a
noncombustible door or a solid core, 1-3/8-inch thick door;provided
such doors are self-closing and equipped with a smoke gasket to
provide a seal where the door meets the top and sides."
(27) Table 9-13, Maximum Allowable Fire-Containment Area, is added to read
as follows:
TABLE 9-B
MAXIMUM ALLOWABLE FIRE-CONTAINMENT AREA
(IN SQUARE FEET)
Types of Construction
Occupancy I-FR II-FR 1HR !I-N 111-1HR 11I-N IV-HT V IHR V N
Al 10,000 10,000 NP NP NOT NP NP NP NP
PERMITTED
A2,2.1 10,000 10,000 5,000 NP 5,000 NP 5,000 5,000 NP
A3,4 10,000 10,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000
B, F1, M, S1, S3 10,000 10,000 7,000 5,000 7,000 5,000 7,000 7,000 5,000
S4, S5, U3
F2, S2 20,000 20,000 10,000 7,000 10,000 7,000 10,000 10,000 5,000
E 10,000 10,000 7,000 5,000 7,000 5,000 7,000 7,000 5,000
RI 10,000 10,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000
(28) Section 1003.3.1.1 is amended by adding a fourth paragraph thereto to read
as follows:
"Other doors which are provided for access only and are neither required
nor used for exit purposes need not conform to this Chapter,provided such
doors cannot be readily construed as exits by building occupants. Such
doors may be rendered permanently inoperable,provided such doors do not
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have grasping hardware,closers or exit signs installed thereon and are made
to appear inconspicuous or resemble the adjacent wall construction or are
provided with an obvious barricade."
(29) Section 1003.3.1.6 is amended in the following respects:
(a) A new Item 1.4 is added under Exception 1 to read as follows:
"1.4. Exterior doors, 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 the step has a minimum tread depth of twelve (12) inches,
a maximum riser height of eight (8) inches, and a minimum width
equal to the door width; and provided the door does not swing over
the step."
(b) A second paragraph is added at the end of this section 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) The first paragraph of 1003.3.1.8 is amended by adding a third exception
to read as follows:
"3. In other than individual dwelling units, Group R, Division 1 guest
rooms and congregate residences, exit doors from buildings or rooms
having an occupant load of ten (10) or less may have a night latch, dead
bolt,security chain or other security device which can be readily inactivated
provided a sign is posted conforming to exception 1 above."
(31) Section 1003.3.3.6 is amended by revising the first sentence of the second
paragraph thereof to read as follows:
"The top of handrails and handrail extensions shall be placed not less than
thirty-two(32)inches nor more than thirty-eight(38)inches above landings
and the nosing of treads."
(32) Section 1101.1 is amended by adding third and fourth paragraphs
respectively thereto to read as follows:
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"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. thereof,
which prescribes that for any property containing more than seven (7)
dwelling units in one or more multiple housing-unit buildings,the standards
for making such buildings and facilities accessible and usable by persons
with disabilities shall be as specified in American National Standards
Institute pamphlet number Al 17.1-1980. Said standards shall apply to the
construction of one (1) accessible dwelling unit for every seven (7)
dwelling units of the total constructed on any such property described
herein in the incremental quantities listed as follows:
Total Number of Units Accessible Units Required
7 0
8 to 14 1
15to21 2
22 to 28 3
29 to 35 4
36 to 42 5
Etc. Etc.
"When the Building Review Board considers granting exceptions or
variances either to this chapter pursuant to Section 105 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."
(33) Section 1103.1.9.1 is amended by adding new paragraphs after the last
paragraph thereof to read as follows:
"When any building or buildings, classified as Group R, Division 1
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)
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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% 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 non-accessible 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 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."
(34) Section 1103.1.9.2 is amended by revising the first sentence thereof to read
as follows:
"Hotels, lodging houses and congregate residences shall be provided with
accessible units complying with the standards promulgated by the
American National Standards Institute pamphlet number Al17.1-1992.
Said standards shall apply to the construction of one(1)accessible unit for
every seven (7) units of the total constructed in buildings containing the
uses as described above in the incremental quantities listed as follows:
Total Number of Units Accessible Units Required
7 0
8 to 14 1
15to21 2
22 to 28 3
29 to 35 4
36 to 42 5
Etc. Etc."
(35) Section 1202.2.1 is amended by adding a new paragraph thereto to read as
follows:
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"In rooms or portions of buildings where tobacco smoking is permitted,the
mechanically operated ventilation system shall be capable of either
supplying thirty (30)cubic feet per minute of outside air per occupant or as
specified in Table A-12-A of Appendix Chapter 12 for smoking lounges
when such places are occupied. "
(36) Section 1203.1 is amended by adding a third exception thereto to read as
follows:
"3. Light and ventilation for an interior room may be supplied from
an adjoining exterior room, provided the following conditions
are met:
3.1. The common wall is provided with operable openings
having an aggregate area of not less than one-twentieth
(1/20) of the floor area of the interior room.
3.2. The adjoining exterior room has openable exterior
openings for light and ventilation as required in this
section,plus additional such openings not less in area than
the amount required for the interior room."
(37) Section 1203.2 is amended by deleting the exception in its entirety and
replacing it with two new exceptions to read as follows:
"EXCEPTIONS:
1. Artificial light may be substituted for natural light for all
habitable rooms in basements other than in sleeping rooms,
provided such rooms are not a part of dwelling unit located in a
basement.
2. Kitchens in Group R Occupancies may be provided with
artificial light."
(38) A new section, Section 1210 is added to the end of Chapter 12 to read as
follows:
"SECTION 1210 - RADON REDUCTION SYSTEMS
"1210.1 General. The standards set forth in this section shall apply to the
design and installation of radon reduction systems in new Group R,
Division 3 single-family homes, when such systems are provided. The
provisions of this section are not intended as requiring such systems.
"1210.2 Definitions. For the purpose of this section, certain terms are
defined as follows:
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"DIFFUSION RETARDER MEMBRANE is a continuous film of
minimum 6 mil polyethylene or other approved equivalent material with a
maximum permeability rating of 1 perm; and, which entirely covers all
exposed earth in a crawl space or similar space within a building. Any joint
or seam created where more than one section of material is used, is
overlapped a minimum of 12 inches (305 mm).
"SUB-MEMBRANE SYSTEM is a radon collection system designed to
be used with a crawl space foundation or other similar, exposed, earthen
area within a structure to provide method for the collection of soil gases
from beneath an approved diffusion retarder membrane prior their entry
into the air space of the building and vent them to the outside. The venting
of the collected gases may be achieved in one of two methods as follows:
1. Passive Sub-membrane Systems. Such systems include a radon vent
pipe routed through the conditioned space of a building and
connecting the sub-membrane area with outdoor air,thereby relying
on the convective flow of air upward in the vent to draw air from
beneath the membrane.
2. Active sub-membrane systems. Such systems include all components
of a passive system with a fan-powered depressurization vent drawing
air from beneath the membrane.
"SUB-SLAB SYSTEM is a radon collection system designed to be used
with concrete slab-on-grade or concrete basement floor foundations to
provide a method for the collection of gases immediately below the slab
prior to the gases entry into the air space of the building via openings in the
slab and to vent them to the outside. The venting of the collected gases
may be achieved in one of two methods as follows:
1. Passive sub-slab systems. Such systems include a radon 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.
2. Active sub-slab systems. Such systems include all components of a
passive system with a fan-powered depressurization vent drawing air
from beneath the slab.
"1210.3 Sealing of Openings, Penetrations, and Joints; and Surface
Dampproofing. Where a radon collection system is installed, openings,
penetrations,joints,and porous surfaces shall be sealed in accordance with
this section. Gaps and joints shall be cleared of loose material and filled
with polyurethane caulk or other compatible elastomeric sealant approved
for such use, applied in accordance with the manufacturer's
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recommendations. The following specific locations are required to be
sealed:
1. At control joints, isolation joints, construction joints, and any other
joints in concrete slabs or between slabs and foundation walls.
2. At joints, cracks, or other openings around all penetrations of both
exterior and interior surfaces of masonry block or wood foundation
walls below exterior grade level.
3. At any hollow unit masonry foundation course immediately below a
ledge for brick veneer or other masonry.
4. At openings around bathtubs,showers,water closets,pipes,wires,or
other objects that penetrate concrete slabs.
5. In sump pits open to soil,exterior or interior drain loops.(These shall
be covered with a gasket or a re-sealable cover.)
1210.4 Combination Foundation Systems. In buildings with both slab-
on-grade and space foundations, a combined radon reduction system may
be provided for both foundation types interconnected to a common radon
vent pipe, either above or below the foundation.
"1210.5 Sub-membrane Systems. When a radon reduction system is
provided in buildings with crawl-space foundations or similar exposed
earthen areas within such buildings, a passive or active sub-membrane
system as defined in Section 1210.2 shall be connected to a radon vent pipe
in accordance with Section 1210.7. The diffusion retarder membrane
described in Section 1210.2 shall be sealed with an approved sealant in the
following manner:
1. at the edges of the diffusion retarder membrane to the above grade
surface of the interior of the foundation walls, and
2. between the overlapping seams, and sealing around plumbing lines
and other penetrations through the diffusion retarder membrane.
"1210.6 Sub-slab Systems. When a radon reduction system is provided
in buildings with basements or concrete slabs-on-grade,a passive or active
sub-slab collection system as prescribed herein shall be connected to a
radon vent pipe installed in accordance with Section 1210.7. A means for
allowing the collection of sub-grade soil gas shall be placed under all
concrete slabs that directly contact the ground and are within the living
space using either one of the following two options:
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1. Aggregate Option. A uniform layer 4 inches (102 mm)thick of clean
aggregate which passes through a 2-inch (51 mm) sieve and is
retained by a 1/4-inch(6.4 mm)sieve shall be placed beneath all such
concrete slabs. 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 mZ)per 10 feet
(3 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 1210.7 in lieu
of penetrations through the barrier.
2. Mechanical Collection Option. Where fills of aggregate size less than
that described in the preceding option are used beneath a slab, a
mechanical means for augmenting the flow of sub-grade air shall be
used by either of the following methods.
a. Perforated Pipe Method: For slab areas less than 2,000 square
feet (186 m'), 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 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 cm'/ in') 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, these 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 shall have
separate loops for every additional 2,000 square feet when 3-inch
diameter pipe is used; or. slabs may have separate loops
provided for each additional increment in area between 2,000
square feet and 4,000 square feet when 4-inch diameter pipe is
used.
b. Soil gas Collection Mat Method: For slab areas of 2,000 square
feet or less a continuous rectilinear loop of soil gas collection
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mat or drainage mat having minimum dimensions of 1 inch in
height by 12 inches in width and a nominal cross-sectional air
flow area of 12 square inches 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 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 but less
than 4, 000 square feet shall have 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 shall have separate loops for each 2,000
square feet; or, increased to 4,000 square feet when a loop is
bisected as specified in the preceding configuration.
A diffusion retarder membrane shall be placed on top of the gas
permeable layer covering the entire floor area prior to casting the
slab. The membrane shall fit closely around any pipes,wires or
other penetrations. All punctures or tears shall be sealed or
covered with additional membrane material.
EXCEPTION:
Such membrane may be omitted where all joints, seams,
penetrations,and other openings in the concrete floor slab are
sealed as prescribed in Section 1210.3.
"1210.7 Radon Vent Pipe. A radon vent pipe as specified herein shall be
connected to every radon collection system in a manner that does not
restrict air flow into the vent pipe. Every radon vent pipe shall be
independent of any other vent system."
"1210.7.1 Size and materials. The radon vent pipe shall be a minimum of
a cross-sectional area equal to 0.0063 square inches per square foot (0.44
cmZ/m2) of foundation floor area vented and be a minimum pipe diameter
size of 3-inch(76 mm). The radon vent pipe shall be made of schedule 40
ABS, PVC, DWV, or other approved gas-tight pipe.
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"1210.7.2 Connection to sub-slab aggregate. Where a sub-slab collection
system complying with Option 1 of section 1210.6 is utilized, the radon
vent pipe shall be embedded vertically into the gas permeable layer of the
sub-slab system by means of the termination being connected to a Tee
fitting of equal size whose horizontal legs are parallel and within the layer
of aggregate. Furthermore,perforated pipes 5 feet(1.53 m) in length shall
be connected to each of the open ends of the Tee and laid into the aggregate
layer of gravel as a means for restricting the entry of aggregate into the Tee,
or equivalent method, shall be provided.
"1210.7.3 Connection to sub-slab mechanical collection systems.
Where a sub-slab system complying with Option 2 of section 1210.6 is
utilized, the radon vent pipe shall be connected directly to the sub-slab
perforated pipe or soil gas collection systems as described therein. The
connector shall have a free flow area equal to, or larger than, the nominal
cross-sectional area of the mechanical collection system or the radon vent
pipe, whichever is greater.
"1210.7.4 Connection to sub-membrane collection systems. Where a
sub-membrane collection system complying with section 1210.5 is utilized,
the radon vent pipe shall penetrate beneath the membrane vertically and
connected to a Tee fitting of equal size whose horizontal legs are parallel
and between the membrane and the earthen floor. Furthermore,perforated
pipes 5 feet(1.53 m) in length shall be connected to each of the open ends
of the Tee and laid into the aggregate layer of gravel as a means for
restricting the entry of aggregate into the Tee, or equivalent method, shall
be provided.
"1210.7.5 Accessibility. The radon vent pipe shall be accessible through
an attic or other area outside the habitable space for future installation of a
fan.
"1210.7.6Identification. All exposed and visible interior radon vent pipes
shall be permanently marked and identified in an approved manner with a
minimum of one label per floor and in the accessible attic. The label shall
read: "Radon Reduction System.
"1210.7.7 Drainage. All components of the radon vent pipe system shall
be installed in such a manner so as to provide positive drainage of moisture
to the ground beneath the slab or diffusion retarder membrane.
"1210.7.8 Multiple vent pipes. In buildings where interior footings or
other barriers separate the sub-slab or sub-membrane collection systems
and interconnection of these systems below the foundation is not feasible,
each system shall be provided with an individual radon vent pipe. In
buildings with more than one radon vent pipe, each radon vent pipe may
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interconnect to a common single vent pipe sized as specified in section
1210.7.1.
"1210.7.9 Termination. The radon vent pipe shall terminate as follows:
1. A minimum of 12 inches (305 mm) above the roof.
2. Not less than 10 feet(3.05 m)from any window or other opening into
the conditioned space of the building that is less than 2 feet(0.61 m)
below the exhaust point.
3. Not less than 10 feet (3.05 m) from any window or other opening in
an adjoining or adjacent building; or 2 feet (0.61m) above any
window.
4. Not less than 10 feet(3.05 m)away from any mechanically powered
vent that supplies air to the interior of the building.
5. With a corrosion-resistant screen having openings between 1/4 inch
(6 mm)and'/z inch(12 mm)installed on the discharge end of the pipe
to prevent the entry of small animals.
6. Without rain caps and located to allow exhaust gases to be directed
away from the building.
"1210.8 Requirements for Future Fan-Depressurization System
Activation. Permanent provisions shall be made for the 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, or garage. Furthermore, designated fan locations shall not
be in the crawl space beneath the structure. Designated locations shall
accommodate a 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 (0.76 m). Designated fan
locations shall be permanently accessible for servicing and maintenance.
An electrical circuit shall be provided within 4 feet(1.22 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 National Electric Code.
"1210.9 Activation of Passive System. When a passive system as
constructed in accordance with this section is to be converted to an active
system, an approved in-line fan shall be installed in designated fan
locations as specified in section 1210.8. 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."
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(39) Section 1501.2 is amended by adding an item to subsection 1, Roof
coverings, thereunder to read as follows:
" 1.10 ASTM D 225,Asphalt Shingles Surfaced with Mineral Granules."
(40) Section 1503 is amended to read in its entirety as follows:
"SECTION 1503-ROOFING REQUIREMENTS
"1503.1 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
1504.2 may be applied in accordance with the
manufacturer's specifications in lieu 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 five(5)feet
to the nearest adjacent property line and are a minimum
distance of ten (10) feet to another building."
"1503.2 Reroofing. Except as otherwise provided hereunder, reroofing
shall be applied in accordance with this chapter and Appendix Chapter 15;
and subject to the following conditions:
l. No portion of an existing nonrated roof covering may be permanently
replaced or covered with more than one square of nonrated roof
covering.
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."
(41) Section 1507.5 is amended to read in its entirety as follows:
"Asphalt shingles shall be installed in accordance with manufacturers'
instructions for high wind areas and with Table 15-13-1."
(42) Table No. 15-A Minimum Roof Classes, is deleted in its entirety.
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(43) The first paragraph of Section 1614 is amended to read in its entirety as
follows:
'Buildings and other structures and all portions thereof that are subject to
snow loading shall be designed to resist such snow loads in accordance
with Appendix Chapter 16,Divisions I,wherein the `ground snow load'p,,
shall be 30 ps£"
(44) Section 1618 is amended to read in its entirety as follows:
"Basic wind speed. The minimum basic wind speed for determining design
wind pressure shall be one hundred (100) miles per hour."
(45) Table 18-1-C, Foundations for Stud Bearing Walls, Minimum
Requirements, is amended to read as follows:
TABLE 18-1-C
FOUNDATIONS FOR STUD BEARING WALLS-MINIMUM REQUIREMENTS'9
UNDER CONDITIONS NOT REQUIRING SPECIAL DESIGN
Thickness of
foundation wall
(inches)
Depth of
Number of foundation
floors below
supported Unit Width of Thickness finished
by the masonry Height of footing offooting grade
oun ation Concrete nominal wall(inches) (inches)' inches (inches)"
1 6 6 2 36 or less' 16 8 30
8 8 Z more than
36 to 1084,1
2 Same as Same as Same as 20 10 30
for 1 story for 1 story for 1 story
3 10 10 Same as 24 12 30
for 1 story
Footnotes:
Foundations may also support a roof.A foundation supporting a roof only,shall be considered as
supporting one(1)floor.
2 The minimum reinforcement for masonry foundations shall be as follows:
(a) Foundation walls three(3)feet or less in height shall be reinforced with#4 vertical bars
spaced a maximum of thirty-two(32) inches on center. All cells containing the vertical
reinforcement shall be filled solidly with grout.
(b) Foundation walls greater than three(3)feet,to nine(9)feet in height shall be reinforced
with#5 vertical bars spaced a maximum of thirty-two(32)inches on center.Vertical bars
shall be bent so as to form a minimum horizontal extension of six(6)inches imbedded a
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minimum of three(3)inches below the top of the footing.All cells containing the vertical
reinforcement shall be filled solid with grout.
(c) Horizontal reinforcement shall consist of approved wire reinforcement with a minimum
of 9-gauge side and cross runs.Such reinforcement shall be laid continuously in alternate
bed joints.
(d) The top course of foundation walls shall be a bond beam course. Bond beam courses for
walls three(3)feet or less in height shall be reinforced with one(1)#4 bar. Bond beam
courses for walls three(3)to nine(9) feet in height shall be reinforced with two(2)#4
bars. Vertical bars shall be tied to the bond beam longitudinal bars.
Concrete foundation walls three(3)feet or less in height shall be reinforced with one(1)#4 bar
located not less than three(3)inches nor more than six(6)inches from the top of the wall and one
(1)#4 bar located not less than three(3)inches nor more than six(6)inches from the bottom of the
wall.The bars shall be centered within the width of the wall.
° Concrete foundation walls more than three (3) feet and less than five (5) feet in height shall be
reinforced with three(3)#4 bars equally spaced with the top and bottom bar not less than three(3)
inches nor more than six(6) inches from the top and bottom of the wall.The bars shall be placed
not less than one and one-half(1'/2) inches from the vertical edges of the wall.
Concrete foundation walls five(5)feet and less than seven (7)feet in height shall be reinforced
with four(4)#4 bars equally spaced with the top and bottom bar not less than three(3)inches nor
more than six(6)inches from the top and bottom of the wall.The bars shall be placed not less than
one and one-half(1%)inches from the vertical edge.
Concrete foundation walls between seven (7)feet and nine(9) feet in height shall be reinforced
with five(5)#4 bars equally spaced with the top and bottom bar not less than three(3) inches nor
more than six(6)inches from the top and bottom of the wall. The bars shall be placed not less than
one and one-half(1'/2)inches from the vertical edge.
Concrete foundation walls greater than nine (9) feet in height shall be designed by a licensed
professional engineer.
s Minimum requirements for conditions not requiring an engineered foundation design or when an
engineered foundation design is not provided.Foundations subject to excessive surcharge loads or
lateral pressures created by unstable soil or groundwater conditions or where expansive soil
swelling pressures exceed five hundred (500) pounds per square foot, shall be designed by an
engineer licensed in this State to practice as such and in accordance with Section 1804.
9 An acceptable method to prevent movement of the foundation wall on the footing shall be provided.
0 Except for an approved'Frost-protected'foundation design,for which the minimum depth shall be
determined by the Building Official.
(46) Section 2306.7 is amended to read in its entirety as follows:
"2306.7 Under-floor ventilation and vapor barrier.Exterior ventilation
openings installed in under-floor areas (excluding combustion air supply
openings or ducts required by the Fort Collins mechanical code) shall
qualify such spaces as being unheated and unconditioned for energy
conservation purposes, requiring the floor system above and any other
surfaces separating the space from adjoining conditioned spaces to be
insulated as prescribed in Appendix Chapter 53. All exposed ground
surfaces within buildings shall be covered and effectively separated from
the atmosphere in the building in an approved manner with a barrier or
retarder having a maximum permeability rating of 1 perm."
(47) Item 5 of Section 2406.4 is amended to read in its entirety as follows:
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"5. Glazing in doors and enclosures of any shower;bathtub,sauna,steam
room and spa; and in any portion of a building wall enclosing such
compartments when either one of the following conditions exist:
1. Where any portion of such glazing is less than sixty (60) inches
above the drain inlet and standing surface, or
2. Where any portion of such glazing is within forty-eight (48)
inches of an interior surface of a tub."
(48) Section 2409.3 is amended in the following respects:
(a) The first sentence of the first paragraph thereof is amended in its
entirety to read as follows:
"Annealed and ordinary glass shall be protected by screens installed
below the glazing."
(b) The last sentence of the first paragraph thereof is amended in its
entirety to read as follows:
"When multiple-layer glazing systems are used and the layer facing
the interior is laminated,wired or tempered glass,a protective screen
need not be installed below the skylight."
(49) Section 2603.7.1,Item 6 is amended by adding a third exception thereto to
read as follows:
"3. In Group R, Division 1, apartment houses and Division 3
Occupancies,the minimum separation may be eighteen(18)inches."
(50) Chapter 30 is amended by adding a new section thereto to read as follows:
"SECTION 3008 - EMERGENCY OPERATION
"3008.1 General. For purposes of this subsection, reference to "ANSI
Code: is the "ANSI/ASME A17.1 Code, latest edition "Safety Code for
Elevators and Escalators," published by the American Society of
Mechanical Engineers.
"3008.2 Commandeering Switch. In other than dwelling units, all
elevators shall be provided with emergency recall switches near their
entrances on main floors of each building and in the cars as specified in
Section 211.3(a) of the ANSI Code.
"3008.3 Smoke Detection. Smoke detectors and automatic return shall be
provided as specified in Section 211.3(a) of the ANSI Code.
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"3008.4 Emergency Operation Keys.Keys for emergency operation shall
be provided as specified in Section 211.3(a) of the ANSI Code."
(51) Appendix Chapter 3, Division 1 - DETENTION AND CORRECTIONAL
FACILITIES is adopted in its entirety.
(52) Appendix Chapter 3, Division II - AGRICULTURAL BUILDINGS is
adopted in its entirety and amended by adding an exception to Item "4"of
Section 326 to read as follows:
"EXCEPTION:
Greenhouses and similar structures attached to Group R Occupancies for
the purpose of providing light and ventilation that do not exceed
twenty-five (25) percent of the floor area of the dwelling unit may be
classified as Group R Occupancies."
(53) Appendix Chapter 3, Division IV - REQUIREMENTS FOR GROUP R,
DIVISION 4 OCCUPANCIES, is adopted in its entirety and amended by
adding a new paragraph to Section 334.2, Special Provisions thereunder to
read as follows:
"Group R, Division 4 Occupancies shall be provided with automatic fire
sprinkler systems installed in accordance with Appendix III-E of the
Uniform Fire Code as adopted and amended by the city."
(54) Appendix Chapter 4, Division I- BARRIERS FOR SWIMMING POOLS,
SPAS, AND HOT TUBS; and Division II - AVIATION CONTROL
TOWERS, are adopted in their entirety.
(55) Appendix Chapter H, ACCESSIBILITY, Divisions 1 and II, is adopted in
its entirety.
(56) Appendix Chapter 13, ENERGY CONSERVATION IN NEW BUILDING
CONSTRUCTION, is adopted and amended in its entirety to read as
follows:
"The Model Energy Code, 1995 Edition, promulgated by the Council of
American Building Officials, is hereby adopted by reference with the
following amendments:
(a) Section 102.1.2 is amended by deleting the first paragraph thereof,
and by deleting the first word of the second paragraph,
"Alternatively," by inserting a new sentence following the first
sentence of such paragraph and by adding a second new sentence at
-28-
the end of said paragraph, which new sentences shall read,
respectively, as follows:
"The certification shall also include a statement that the insulation
described therein is installed in accordance with the applicable
installation guidelines established by the Building Official.
"Such certification shall also be submitted to the Building Official by
the builder or general contractor of record prior to issuance of a
Certificate of Occupancy."
(b) Section 102.1.3 is amended by deleting the first word of the second
paragraph, "Alternatively."
(c) Table 102.3a, U-VALUE DEFAULT TABLE FOR WINDOWS,
GLAZED DOORS AND SKYLIGHTS, is deleted in its entirety and
replaced with a revised Table 102.3a as follows:
DEFAULT WINDOW U-VALUES (WHEN NOT OTHERWISE
PROVIDED BY THE BUILDING OFFICIAL)
No. of Frame Default
glazings Coating Gas fill type U-Value
1 None N/A Any 1.00
2 None Air Metal 0.87
2 None Air Wood or vinyl 0.52
2 Low-e Air Wood or vinyl 0.41
2 Low-e Argon Wood or vinyl 0.37
(d) Section 102 is amended by adding two new sections,respectively, to
read as follows:
"102.4 Mechanical equipment installation. Prior to issuance of a
Certificate of Occupancy,the builder or general contractor of record
shall submit to the Building Official a certification, signed and dated
by the mechanical contractor or installer. Such certification shall
contain:(1)information on the mechanical equipment;(2)a statement
that the equipment was installed in accordance with the
manufacturer's instructions; (3) a statement that manufacturer's
installation and operation manuals are provided for the end user; and
(4) information on air sealing of the air distribution systems.
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"102.5 Air leakage sealing measures. Prior to issuance of a
Certificate of Occupancy, the builder or general contractor of record
shall submit to the Building Official a signed and dated certification
either(1)that the air sealing measures prescribed pursuant to Section
502.3 are installed in accordance with the applicable installation
guidelines established by the Building Official; or (2) that an
air-leakage test, verifying compliance with the performance level
specified in Section 502.3.5, has been performed."
(e) Section 302.1 is amended by inserting in Table 302.1, Exterior design
conditions, the following values:
"Winter Design Dry-bulb = 10"F;
"Summer Design Dry-bulb= 91°F;
"Design wet-bulb = 59°F;
"Degree days, Heating = 6368"
(f) Section 402 is amended in its entirety to read as follows:
"SECTION 402 SYSTEMS ANALYSIS
"402.1 Energy analysis. As an alternative to following the
compliance path prescribed in Chapter 5 of this code, compliance
with this code may be demonstrated by performing an entire building
system energy analysis that documents energy performance consistent
with the provisions of Chapter 5. Any such analysis methodology,
assumptions, calculation procedures, documentation and related
requirements shall be approved by the Building Official."
(g) Section 501.1 is amended by adding a second sentence to read as
follows:
"All materials and methods shall be in accordance with generally
accepted minimum standards for installation and in accordance with
applicable installation guidelines established by the Building
Official."
(h) Section 502.2.1 is amended by rewording the first sentence thereof to
read as follows:
"The combined thermal transmittance value (U°) of the gross area of
the exterior walls shall not exceed 0.132 in buildings heated by
natural gas as the primary fuel source,nor exceed 0.120 in buildings
heated by electricity as the primary energy source."
(I) Section 502.2.2 is amended to read in its entirety as follows:
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"502.2.2 Roof/ceiling. In any building where the total area of
skylights does not exceed 2% of the roof area, the roof/ceiling
assembly shall be insulated with materials having a minimum R-value
of R-38 in roof/ceiling assemblies containing an attic space, or shall
be insulated with materials having a minimum R-value of R-30 in
roof/ceiling assemblies with enclosed rafter spaces,provided further
that such skylights have glazing and frame thermal performance
characteristics similar to those of the predominant window type used
in such building.
"In any building where the total area of skylights exceeds 2% of the
roof area, such excess skylight area shall be treated as additional
window area in the exterior wall for purposes of complying with
Section 502.2.1."
(j) Section 502.2.3 is amended to read in its entirety as follows:
"502.2.3 Floors over unheated spaces. Floors which project over
outdoor air shall be insulated with materials having a minimum
R-value of R-30 in buildings heated by natural gas as the primary fuel
source, or shall be insulated with materials having a minimum
R-value of R-38 in buildings heated by electricity as the primary
energy source. The spaces between the floor joists of floors over
unheated spaces that are within the building envelope, and are
intended to be thermally separated from conditioned spaces, shall be
insulated with materials having a minimum R-value of R-19 in
buildings heated by natural gas as the primary fuel source,or shall be
insulated with materials having a minimum R-value of R-30 in
buildings heated by electricity as the primary energy source.
"EXCEPTION: Crawl spaces in which the walls are entirely
insulated along the perimeter as prescribed in Section 502.2.5 need
not be provided with an insulated floor above."
(k) Section 502.2.4 is amended to read in its entirety as follows:
"502.2.4 Slab-on-grade floors.
"502.2.4.1. Slab-on-grade floors in buildings heated by natural gas
as the primary fuel source. Slab-on-grade floors in any building
heated by natural gas as the primary fuel source shall be insulated
along the perimeter with approved materials having a minimum
R-value of R-5 from the top of the slab to a depth of 48 inches or a
minimum R-value of R-7.5 to a depth of 24 inches. For heated
slab-on-grade floors, such insulation shall have a minimum R-value
of R-7.5 and extend from the top of the slab to a depth of 48 inches
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or have a minimum R-value of R-10 and extend from the top of the
slab to a depth of 24 inches. Approved frost-protected foundation
systems in accordance with the applicable installation guidelines
established by the Building Official may be used.
"502.2.4.2. Slab-on-grade floors in buildings heated by electricity as
the primary energy source. Unheated or heated slab-on-grade floors
in any building heated by electricity as the primary energy source
shall be insulated along the perimeter of the floor with approved
materials having a minimum R-value of R-10 from the top of the slab
to a depth of 48 inches.Approved frost-protected foundation systems
in accordance with the applicable installation guidelines established
by the Building Official may be used."
(1) Section 502.2.5 is amended by replacing the first sentence thereof
with anew sentence to read as follows:
"Crawl spaces which are included in the conditioned floor area,which
have no exterior vents (excluding combustion air supply ducts
required by the Fort Collins mechanical code) and which have
exposed interior ground surfaces sealed in approved manner as
specified in the Fort Collins building code, shall be insulated with
materials having a minimum R-value of R-19."
(m) Section 502.2.6 is amended to read in its entirety as follows:
"502.2.6 Basement walls. Basement walls below uninsulated floors
shall be insulated on either the exterior side or the interior side as
specified in this section."
(n) New sections, Section 502.2.6. l and Section 502.2.6.2, are added
after Section 502.2.6 to read as follows:
"502.2.6.1 Interior insulation. Insulation on the interior side shall
have a minimum R-value of R-I I and shall extend from the top of
such basement wall to the basement floor surface.
"502.2.6.2 Exterior insulation. Insulation on the exterior side shall
have a minimum R-value of R-10 and shall extend from the top of
such basement wall, down to a minimum of 48 inches below the
exposed foundation level and not less than 42 inches below the
finished grade."
(o) A new Section 502.3.5 is added to read as follows:
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"502.3.5 Alternative performance testing. In lieu of the itemized
requirements contained in Section 502.3.3, an approved air leakage
test may be performed by a qualified agency, which results in a
maximum air change rate of 5 air changes per hour (ACH) at 50
pascals pressure difference between the building interior and the
outside."
(p) Section 503.8.2 is amended to read in its entirety as follows:
"503.8.2 Duct sealing. Any low-pressure supply and return ducts
located outside conditioned spaces shall be permanently sealed using
mastic with fibrous backing tape installed in accordance with the
manufacturer's instructions; or using other approved materials.
Standard duct tapes are not approved for such use."
(q) Section 503.7.1 is amended by rewording the first sentence to read as
follows:
"Duct systems, or portions thereof, shall be insulated with materials
having an R-value of R-8."
(r) Sections 504.2.1.1, 504.2.1.2 and 504.2.2 are deleted in their entirety.
(s) Section 504.7 is amended by renaming and renumbering such
subsection to read as follows:
"504.7.1 Pipe insulation for recirculating systems."
(t) A new Section 504.7.2 is added to read as follows:
"504.7.2 Pipe insulation for nonrecirculating systems. The first
eight(8) feet of inlet and outlet water piping from the hot water tank
storage system shall be installed with insulation of one (1) inch
minimum thickness with a thermal conductivity no greater than 0.30
Btu-in./(hr-ft2-°F). Alternatively, water heaters shall have heat traps
installed on both the inlet and outlet piping.
"EXCEPTION: Provisions of this section do not apply to water
heaters equipped with integral heat traps or to water heaters that do
not have vertical risers."
(u) Chapter 6, Residential Building Design by Acceptable Practice, is
deleted in its entirety.
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(v) Section 801, REFERENCED STANDARDS, is amended by revising
the standard listed under Subsection 801.1, General, as "RS-22, "to
read as follows:
"RS-22 Fort Collins Energy Code for Commercial, Industrial, and
High-Rise Buildings, based on the Codification of ASHRAEIIES
90.1-1989, Energy Efficient Design of New Buildings Except
Low-Rise Residential Buildings, 1993, as amended."
(57) Appendix Chapter 15, REROOFING is adopted in its entirety and amended
in the following respects:
(a) Section 1515.1 is amended by revising the title thereof to read as
follows:
"1515.1 Conditions for Approval of Existing Roofing to Remain
in Place."
(b) Section 1515.1 is amended by deleting the first sentence thereof.
(c) Section 1515.2.1 is amended by revising it in entirety to read as
follows:
"1515.2.1 Pre-roofing Inspection. A pre-roofing inspection may be
required prior to application of new roofing to verify the existing
roofing is in compliance with Section 1515.1. The building official
may accept an inspection report of such compliance by a qualified
special inspector."
(58) Appendix Chapter 16, Division I-SNOW LOAD DESIGN is adopted in its
entirety with Section 1638- NOTATIONS, amended by revising the 7,"
value as follows:
"Ps= basic ground snow load, is 30 psf."
(59) Appendix Chapter 18, WATERPROOFING AND DAMPPROOFING
FOUNDATIONS, is adopted in its entirety and amended in the following
respects:
(a) Section 1838.2, of APPENDIX CHAPTER 18 is amended by adding
a second paragraph thereto to read as follows:
"Final grading adjacent to the foundation shall be compacted
sufficiently and in such a manner such that is not undermined or
subject to significant settlement or displacement due to improper
placement of backfill."
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(60) Appendix Chapter 21, PRESCRIPTIVE MASONRYCONSTRUCTIONIN
HIGH-WIND AREAS is adopted in its entirety.
(61) Appendix Chapter 29, MINIMUM PLC/MBING FIXTURES is adopted in
its entirety.
(62) Appendix Chapter3l, Division H-MEMBRANESTRUCTURESis adopted
in its entirety.
Introduced, considered favorably on first reading, and ordered"pugshed in summary fm this
5th day of May,A.D. 1998,and to be presented for final passage on the 19th day of May,kY.D. 1998.
r-
" �Glayor
c
ATTEST:
City Clerk
Passed and adopted on final reading this 19th day of M�A.D.,1998.
17
ATTEST:
u City Clerk
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