HomeMy WebLinkAbout151 - 01/02/2019 - AMENDING CHAPTER 5. ARTICLE II, DIVISION 2, OF THE CITY CODE FOR THE PURPOSE OF REPEALING THE 2015 I1
ORDINANCE NO. 151, 2018
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 2015 INTERNATIONAL RESIDENTIAL CODE AND ADOPTING THE
2018 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 seven interconnected basic construction codes under one
publication year; and
WHEREAS, the seven interconnected basic construction codes are the International
Building Code, International Residential Code, International Mechanical Code, International
Fuel Gas Code, International Energy Conservation Code, and International Property
Maintenance Code; and
WHEREAS, the City Council has determined that the 2018 publication year of the seven
interconnected basic construction codes ought to be adopted and that any counterpart codes
previously adopted should be repealed, both in order to align the publication years of the codes
and also because the 2018 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 seven interconnected basic construction codes has been
presented to and recommended by the Board of Realtors, Water Board, Energy Board,
Commission on Disability, Natural Resource Advisory Board, Poudre Fire Authority Board,
Building Review Board, Affordable Housing Board, Air Quality Advisory Board, Northern
Colorado Home Builder Association and the Chamber of Commerce; 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 2015 International Residential Code, as
previously adopted and amended by the City pursuant to Ordinance No. 072, 2017, be repealed
and that in its place, the 2018 International Residential Code be adopted, with local amendments
as set forth in this Ordinance; and
WHEREAS, pursuant to the City Charter II, Section 7, City Council may enact any
ordinance which adopts a code by reference in whole or in part provided that before adoption of
such ordinance the Council hold a public hearing thereon and that notice of the hearing is published
twice in a newspaper of general circulation published in the City, with one of such publications
occurring at least eight (8) days preceding the hearing and the other publication occurring at least
fifteen (15) days preceding the hearing; and
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WHEREAS, in compliance with Article II, Section 7, the City Clerk published in the Fort
Collins Coloradoan such notice of hearing concerning adoption of the 2018 International Building
Code on November 18, 2018, and November 25, 2018; and
WHEREAS, attached as Exhibit “A” and incorporated herein by reference is the Notice of
Public Hearing dated November 18, 2018, that was so published and which the Council hereby
finds meets the requirements of Article II, Section 7 of the City Charter.
Section 1. That the City Council hereby makes and adopts the determinations and
findings contained in the recitals set forth above.
Section 2. That Section 5-26(d) of the Code of the City of Fort Collins is hereby
amended to read as follows:
(d) 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 2015
Edition of the International Residential Code, and adopts, as the residential building code of the
City, the 2018 International Residential Code published by the International Code Council, 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 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. As provided in the 2018 International Residential Code,
Appendices are not adopted except as expressly set forth in Section 5-30.
Section 3. 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 2018 INTERNATIONAL RESIDENTIAL CODE adopted herein is hereby amended in the
following respects:
(1) Section R101.1 Title, is hereby retained in its entirety with the following
amendments:
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 retained in its entirety with the
following amendments:
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R102.4 Referenced codes and standards. The codes and standards referenced in this code
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 and as further regulated in Sections R102.4.1
and R102.4.2.
Exception: Where enforcement of a code provision would violate the conditions of the
listing of the equipment or appliance, the conditions of the listing and manufacturer’s
instructions shall apply.
(3) Section R103 Department of Building Safety, is hereby deleted in its entirety and the
following is hereby added in lieu thereof:
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, is hereby retained in its entirety with the
following amendments:
. . .
Building:
1. One-story, detached, accessory structures for lawn and garden equipment storage,
tool storage and similar uses, as well as arbors, pergolas, and similar structures,
provided the floor area does not exceed 120 square feet (11.15 m2) or 8 feet (2.438
m) in height, do not house flammable liquids in quantities exceeding 10 gallons (38
l) per building and are located at least 3 feet (0.914 m) from an adjoining property
line.
2. Fences not over 6 feet (1829 mm) high.
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, II or IIIA liquids.
4. Water tanks supported directly upon grade if the capacity does not exceed 5,000
gallons (18,927 L) and the ratio of height to diameter or width does not exceed 2 to
1.
5. Platforms intended for human occupancy or walking, sidewalks and driveways not
more than 30 inches (762 mm) above adjacent grade, and are not part of an
accessible route.
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6. Painting, papering, tiling, carpeting, cabinets, counter tops and similar finish work.
7. Prefabricated and portable swimming or wading pools, hot tubs or spas supported
directly upon grade when the walls are entirely above grade and which cannot
contain water more than 24 inches (610 mm) deep.
8. Swings and other playground equipment, or play house/structure not exceeding 120
square feet. One elevated play house or play structure per lot designed and used
exclusively for play. Elevated play houses or play structures shall not exceed 64
square feet (5.9 m2) of floor area nor 6 feet (1.82 m) in height measured from the
floor to the highest point of such structure.
9. Window awnings supported by an exterior wall which do not project more than 54
inches (1372 mm) from the exterior wall and do not require additional support and
do not extend over the public right of way. Window replacement requiring no
structural alteration or no change in the window configuration which reduces the
clear opening, storm window, storm door and rain gutter installation, except that
structures that are fifty years of age or older must undergo a historic review
pursuant to City Code Chapter 14.
10. Decks that are not more than 30 inches (762 mm) above grade at any point, are not
attached to a dwelling and do not serve the exit door required by Section R311.4.
11. Roofing repair or replacement work not exceeding one square (100 square feet) of
covering per building.
12. Replacement of nonstructural siding, when removal of siding is performed in
accordance with State laws regarding asbestos and lead paint, except that structures
that are fifty years of age or older must undergo a historic review pursuant to City
Code Chapter 14.
13. Work valued at less than $500 when such work does not involve alteration of
structural components, fire-rated assemblies, plumbing, electrical, mechanical or
fire-extinguishing systems.
14. Decorative ponds, fountains and pools that cannot contain water more than 24
inches (610 mm) deep.
15. Shade cloth structures constructed for nursery or agricultural purposes, not
including service systems. Hoop houses constructed with a flexible frame such as
PVC tubing used for starting plants.
(5) Section R105.3.2 Time limitation of application, is hereby retained in its entirety with the
following amendments:
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R105.3.2 Time limitation of application An application for a permit for any proposed
work shall be deemed to have been abandoned 180 days after the date of filing, unless such
application has been pursued in good faith or a permit has been issued; except that the
building official is authorized to grant one or more extensions of time for additional periods
not exceeding 180 days each provided the application has not expired. The extension shall
be requested in writing and justifiable cause demonstrated. Applications that have expired
for 30 days or more will be considered void.
(6) Section R105.5 Expiration, is hereby retained in its entirety with the following revision:
Section R105.5 Expiration. Every permit issued shall become invalid unless the work
authorized by such permit is commenced within 180 days after its issuance or after
commencement of work if more than 180 days pass between inspections. The building
official is authorized to grant, in writing, one or more extensions of time, for periods not
more than 180 days each. The extension shall be requested in writing and justifiable cause
demonstrated.
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.
(7) A new Section R105.10 Premises identification, is hereby added to read as follows:
R105.10 Premises identification during construction. 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) A new 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 showing both parties
consent to the transfer. 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 R106.1.4 Information for construction in flood hazard areas, is hereby deleted
in its entirety and the following is hereby added in lieu thereof:
R106.1.4 Information for construction in flood hazard areas. 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 City
Code, Chapter 10, entitled ‘Flood Prevention and Protection’.
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(10) A new Section R106.1.5 Grading performance plans and certificate, is hereby added to
read as follows:
R106.1.5 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. Drainage plans shall be submitted to and
approved by the City’s Storm Drainage department prior to the issuance of the permit.
(11) Section R106.3.1 Approval of construction documents, is hereby retained in its entirety
with the following revision:
R106.3.1 Approval of construction documents. Where the building official issues a
permit, the construction documents shall be approved in writing or by a stamp indicating
the approved permit number. 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 a duly
authorized representative.
(12) Section R107, Temporary Structures and Uses, is deleted in its entirety.
(13) Section R108, Fees, is hereby deleted in its entirety and the following is hereby added in
lieu thereof:
R108 Fees
R108.1 Payment of fees. No permit shall be valid until the fees prescribed by the City
Manager pursuant to Chapter 7.5, Article I of the City Code, entitled, ‘Administrative
Fees’, have been paid, except emergency permits issued pursuant to Section 105.2.1 of the
International Building Code.
(14) A new 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.
(15) A new Section R110.2 Change in use, is hereby amended to read as follows:
R110.2 Change in use. Changes in the character, use, or occupancy of an existing structure
shall not be made except when approved by the building official and the structure is in
conformance with this code and the International Building Code, as amended by the City.
(16) Section R112, Board of Appeals, is hereby deleted in its entirety and the following is
hereby added in lieu thereof:
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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 International Building Code, as amended by the City.
(17) Section R113.4 Violation penalties, is hereby retained in its entirety with the following
revision:
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 City Code, except violations of Section R328 of the International Residential
Code will be a civil infraction subject to the penalty provisions of Section 1-15(f) of the
City Code. Each day that a violation continues shall be deemed a separate offense.
(18) A new 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
R113.4, 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 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 City Code.
(19) Section R202 Definitions, is hereby amended to delete, modify, or add, in alphabetical
order, the following definitions:
…
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.
…
CITY. The municipal corporation of Fort Collins, Colorado, including its physical
location and boundaries.
…
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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.
…
DWELLING Shall mean a building used exclusively for residential occupancy and for
permitted accessory uses, including single-family dwellings, two-family dwellings and
multi-family dwellings. The term dwelling shall not include hotels, motels, homeless
shelters, seasonal overflow shelters tents or other structures designed or used primarily for
temporary occupancy. Any dwelling shall be deemed to be a principal building.
DWELLING UNIT Shall mean one or more rooms and a single kitchen and at least 1
bathroom, designed, occupied or intended for occupancy as separate quarters for the
exclusive use of a single family for living, cooking and sanitary purposes, located in a
single-family, two-family or multi-family dwelling or mixed-use building.
…
FAMILY shall mean any individual living alone or any number of persons who are all
related by blood, marriage, adoption, guardianship or other duly authorized custodial
relationship, and who live together as a single housekeeping unit and share common living,
sleeping, cooking and eating facilities.
…
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 portion
thereof, not provided with surrounding exterior walls shall be the usable area under the
horizontal projection of the roof or floor above.
…
GRADE (ADJACENT GROUND ELEVATION). The lowest point of elevation of the
finished surface of the ground, paving or sidewalk, deck or platform 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.
…
ROOM, SLEEPING (BEDROOM). A habitable space 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.
…
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SITE. A parcel of land bounded by a property line or a designated portion of a public
right-of-way.
…
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.
…
(20) Section 301.1.3 Engineered design, is hereby retained in its entirety with the following
revision:
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 International Building Code, as
amended by the City, is permitted for all buildings, structures, and portions thereof
included in the scope of this code.
(21) Section R301.2, Climatic and geographic design criteria and Table R301.2(1)
CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA are hereby deleted in its entirety
and the following is hereby added in lieu thereof:
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(22) Section R302.2 Townhouses is hereby retained in its entirety with the following revision:
R302.2 Townhouses shall be provided with a fire-suppression system in accordance with
section P2904 of this code, NFPA 13D, or other approved equivalent sprinkler system.
Walls separating townhouse units shall be constructed in accordance with section R302.2.1
or R302.2.2.
(23) Section R302.2.3 Continuity is hereby retained in its entirety with the following revision:
R302.2.3 Continuity. The fire-resistance-rated common wall or assembly separating
townhouses along property lines shall be continuous from the foundation to the underside
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 and/or
enclosed accessory structures or spaces. The fire-resistance-rating shall be maintained
within concealed spaces of projecting elements such as, roof overhangs, canopies,
marquees and similar projections. The fire- resistant rated adjoining walls shall extend to
the outer edge of horizontal projecting elements such as balconies which extend more than
24 inches beyond the exterior wall.
(24) Section R302.3 Two-family dwellings is hereby retained in its entirety with the following
revision:
R302.3 Two-family dwellings. Two-family dwellings shall be provided with a fire-
suppression system as per P2904 at a minimum. Dwelling units in two-family dwellings
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shall be separated from each other by wall and/or floor assemblies having not less than a
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 ½ hour shall be permitted in buildings equipped
throughout with an automatic sprinkler system installed in accordance with NFPA
13.
2. Wall assemblies 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.
(25) Section R308.4.7 Glazing adjacent to the bottom stair landing is hereby retained in its
entirety with the following revision:
R308.4.7 Glazing adjacent to stair landings. Glazing adjacent to the stair landings where
the glazing is less than 36 inches (914 mm) above the landing and within a 60 inch (1524
mm) horizontal arc less than 180 degrees of the top or bottom tread shall be considered a
hazardous location.
Exception: The glazing is protected by a guard complying with Section R312 and the
plane of the glass is more than 18 inches (457 mm) from the guard.
. . .
(26) Section R310.1 Emergency escape and rescue opening required is hereby retained in its
entirety with the following revision:
R310.1 Emergency escape and rescue opening required Basements, habitable attics,
habitable lofts and mezzanines, and every sleeping room, shall have not less than one
operable emergency escape and rescue opening. Where basements contain one or more
sleeping rooms, an emergency escape and rescue opening shall be required in each sleeping
room. Emergency escape and rescue openings shall open directly into a public way, or to
a yard or court that opens to a public way.
Exception:
1. Storm shelters and basements used only to house mechanical equipment not exceeding
a total floor area of 200 square feet (18.58 m2).
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(27) Section R310.1.1 Operational constraints and opening control devices is hereby retained
in its entirety with the following revision:
Section R310.1.1 Operational constraints and opening control devices. Emergency
escape and rescue openings shall be operational from the inside of the room without the
use of keys, tools or special knowledge.
(28) Section R310.2.2 Window sill height is hereby retained in its entirety with the following
amendments:
R310.2.2 Window sill height Where a window is provided as the emergency escape and
rescue opening, it shall have a sill height of not more than 44 inches (1118 mm) above the
floor; where the sill height is below grade, it shall be provided with a window well in
accordance with Section R310.2.3. Emergency escape and rescue window openings that
are located more than 72 inches (1829 mm) above the finished grade shall have a sill height
of not less than 24 inches (609 mm) measured from the finished interior side floor.
(29) Section R311.7.1 Width is hereby retained in its entirety with the following amendments:
R311.7.1 Width. Stairways shall be not less than 36 inches (914 mm) in clear width at all
points above the permitted handrail height and below the required headroom height. The
clear width of stairways at and below the handrail height, including treads and landings,
shall be not less than 311/2 inches (787 mm) where a handrail is installed on one side and
27 inches (698 mm) where handrails are installed on both sides.
Exception: The width of spiral stairways installed as part of an individual dwelling unit
shall be in accordance with Section R311.7.10.1.
(30) Section R311.7.5.1 Risers is hereby retained in its entirety with the following amendments:
R311.7.5.1 Risers. The riser height shall be not more than 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). Risers shall
be vertical or sloped from the underside of the nosing of the tread above at an angle not
more than 30 degrees (0.51 rad) from the vertical. Open risers, are permitted provided that
the openings located more than 30 inches (762 mm), as measured vertically, to the floor or
grade below do not permit the passage of a 4-inch-diameter (102 mm) sphere.
Exceptions:
1. The opening between adjacent treads is not limited on spiral stairways.
2. The riser height of spiral stairways shall be in accordance with Section R311.7.10.1.
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(31) Section R313.2 One- and two-family dwellings automatic fire systems is hereby retained
in its entirety with the following amendments:
R313.2 Two-family dwellings automatic fire systems. An automatic residential fire
sprinkler system shall be installed in two-family dwellings.
Exception: An automatic residential fire sprinkler system shall not be required for
additions or alterations to existing buildings that are not already provided with an
automatic residential sprinkler system.
(32) Section R314.2.2 Alterations, repairs and additions, is hereby retained in its entirety with
the following amendments:
R314.2.2 Alterations, repairs and additions. Where alterations, repairs or additions
requiring a permit occur, the individual dwelling unit shall be equipped with smoke alarms
located as required for new dwellings
Exceptions:
1. Work involving the exterior surfaces of dwellings, such as the replacement of roofing or
siding, the addition or replacement of windows or doors, or the addition of a porch or deck.
(33) Section R314.4 Interconnection is hereby retained in its entirety with the following
amendments:
R314.4 Interconnection. Where more than one smoke alarm is required to be installed
within an individual dwelling unit in accordance with Section R314.3, the alarm devices
shall be interconnected in such a manner that the actuation of one alarm will activate all of
the alarms in the individual dwelling unit. Physical interconnection of smoke alarms shall
not be required where listed wireless alarms are installed and all alarms sound upon
activation of one alarm.
Exception: Interconnection of smoke alarms in existing areas shall not be required where
alterations or repairs do not result in removal of interior wall or ceiling finishes exposing
the structure, unless there is an attic, crawl space, or basement available to could provide
access for interconnection without the removal if interior finishes.
(34) Section R315.2.2 Alterations, repairs and additions, is hereby retained in its entirety with
the following amendments:
R315.2.2 Alterations, repairs and additions. Where alterations, repairs or additions
requiring a permit occur, or where one or more sleeping rooms are added or created in
existing dwellings, the individual dwelling unit shall be equipped with carbon monoxide
alarms located as required for new dwellings.
Exceptions:
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1. Work involving the exterior surfaces of dwellings, such as the replacement of
roofing or siding, or the addition or replacement of windows or doors, or the addition of a
porch or deck.
(35) Section R320.1 Scope, is hereby retained in its entirety with the following amendments:
R320.1 Scope. Where there are four or more dwelling units or sleeping units constructed
in a single structure, the applicable provisions of Colorado Revised Statutes §9-5-101 et.
seq., and the provisions of Chapter 11 of the adopted International Building Code for
Group R-3 shall apply. Nothing in this Section abrogates or otherwise affects an owner’s
duties or responsibilities under the Americans with Disabilities Act or any other federal
law or regulation regarding accessibility.
(36) Section R322 Flood-resistant construction is hereby deleted in its entirety and the
following is hereby added in lieu thereof:
R322 Flood-Resistant Construction
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.
(37) A new Section R328 Resource Efficiency is hereby added to read as follows:
R328 Resource Efficiency
R328.1 Construction waste management. For remodels and additions over 2,500 square
feet, and for all new buildings, a construction waste management plan acceptable to the
building official is required at the time of application for a building permit. The
construction waste management plan shall be implemented and conspicuously posted on
the construction site. All concrete, asphalt, masonry, wood, metals and cardboard shall be
recycled. Compliance shall be certified by inspection and documentation and signed final
construction waste management plans. Substantive changes to the plan shall be subject to
prior approval by the building official. All roofing permits are required to submit a final
waste management plan and documentation.
R328.1.1 Building demolitions. Buildings or portions of buildings that are removed shall
be processed in such a way as to safely remove all asbestos and lead paint contaminants.
For all demolitions, excluding non-structural demolitions under 1000 sq.ft. a demolition
waste management plan acceptable to the building official is required at the time of
application for a demolition permit. All metals, asphalt, concrete and masonry that are free
of asbestos and lead paint shall be recycled, and where possible, all remaining materials,
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such as doors, windows, cabinets, fixtures, and wood, shall be recycled. Compliance shall
be certified by inspection, documentation, and signed final demolition waste management
plans. Substantive changes to the plan shall be subject to prior approval by the building
official.
(38) A new Section R329 Indoor Environmental Quality hereby added to read as follows:
R329 Indoor Environmental Quality (IEQ)
R329.1 Low-volatile organic compound (VOC) materials. Construction materials, floor
coverings and site applied finishes, including sealants and adhesives, resilient flooring,
carpeting and pad, site-applied paints, stains and varnishes, structural wood panels,
hardwood veneer plywood, particle board and fiber board building products, and insulation
shall meet specified volatile organic compound (VOC) emissions limits in accordance with
California Department of Public Health (CDPH) 01350; GREENGUARD Environmental
Institute GGPS.001 standard for building materials and finishes; and Green Seal®
standards. Documentation demonstrating compliance be required with delivery of such
materials and shall be available for inspection.
Exception: For alterations to existing buildings, carpeting and pad, structural wood
panels, hardwood, veneer plywood, particle board and fiber board building products and
insulation are not subject to this requirement.
(39) A new Section R330 Outdoor Environmental Quality is hereby added to read as follows:
R330 Outdoor Environmental Quality (OEQ)
R330.1 Exterior lighting. All exterior lighting fixtures associated with new buildings
shall have the “Fixture Seal of Approval” from the International Dark-Sky Association
(IDA) or meet equivalent criteria approved by the building official. Lighting placement
shall conform to IDA Model Lighting Ordinance for Lighting Zone LZ-1. Light shall be
shielded such that the lamp itself or the lamp image is not directly visible outside the
property perimeter.
(40) A new Section R331 Operations and Maintenance and Building Owner Education is
hereby added to read as follows:
R331 Operations and Maintenance and Building Owner Education
R331.1 Operations and maintenance. In new buildings, operation and maintenance
information addressing all installed systems shall be provided to the building owner.
(41) Section R401.1 Application is hereby retained in its entirety with the following revision:
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 flood hazard areas
16
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 damp-proofing. Final
engineer’s reports, indicating his/her acceptance of the above requirements, shall be
submitted to the building official prior to the issuance of the Certificate of Occupancy.
Exceptions:
1. Foundations for non-habitable detached accessory buildings.
2. The provisions of this chapter shall be permitted to be used for wood foundations
only in the following situations:
a. In buildings that have no more than two floors and a roof.
b. Where interior basement and foundation walls are constructed at intervals
not exceeding 50 feet (15 240 mm).
Wood foundations in Seismic Design Category D0, D1 or D2 shall be designed in
accordance with accepted engineering practice.
(42) A new Section, R401.5 Placement of backfill is hereby added to read as follows:
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 damp-proofing
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 R405.1 Concrete or masonry foundations, is hereby retained in its entirety,
including Table 405.1, with the following revision:
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
17
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 engineer of record has determined
that 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
R405.1.
…
(44) A new Section R405.3 Landscape irrigation, is added to read as follows:
R405.3 Landscape irrigation. Landscape irrigation systems, other than drip systems,
shall be installed such that the ground surface within 60 inches (1524 mm), measured
perpendicular from the foundation, is not irrigated.
(45) Section R408.1Ventilation is hereby deleted in its entirety and the following is hereby
added in lieu thereof:
R408.1 Underfloor ventilation. Underfloor ventilation shall be provided per section
R408.3.
Exception: When the Building Official determines site conditions exist that would require
a vented under-floor space (cold crawl), such as groundwater and other conditions, the
owner can provide underfloor ventilation per section R408.2.
(46) A new 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 be designed by a professional engineer and installed in
accordance with such designs.
(47) A new Section R703.4 Flashing is hereby deleted in its entirety and Section R703.4
Fenestration Installation is added to read as follows:
R703.4 Fenestration installation. For all new construction, all fenestration installations
shall be in accordance with American Architectural Manufacturers Association (AAMA)
Standards/ Specifications for Windows, Doors and Skylights and shall be supervised or
inspected by an individual certified as an Installation Master or by one having attended
training by the manufacturer of the specific window product being installed. Fenestration
perimeter flashing shall be installed per Installation Masters Chapter 16 Method A or A1,
including either rigid or flexible sill pan flashing.
18
(48) A new Section R703.11.3 Vinyl siding on new buildings is hereby added to read as
follows:
Section R703.11.3 Vinyl siding and soffits on new buildings. Vinyl siding and soffits on
new buildings shall be installed over one-hour fire-rated assemblies listed for exterior fire
exposure, in both the vertical and horizontal plane.
(49) A new Section R703.13.2 Insulated vinyl siding on new buildings is hereby added to read
as follows:
Section R703.13.2 Insulated vinyl siding on new buildings. Insulated vinyl siding on
new buildings shall be installed over one-hour fire-rated assemblies listed for exterior fire
exposure, in both the vertical and horizontal plane.
(50) A new Section R703.14.4 Polypropylene siding on new buildings is hereby added to
read as:
R703.14.3 Polypropylene siding on new buildings. Polypropylene on new buildings shall
be installed over one-hour fire-rated assemblies listed for exterior fire exposure, in both the
vertical and horizontal plane.
(51) Section R902.1 Roofing Covering Materials is hereby deleted and is replaced with the
following in lieu thereof:
R902.1 Roofing covering material. 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.
(52) Section R905.1.2 Ice barriers is hereby retained in its entirety with the following revision:
R905.1.2 Ice barriers. In areas where there has been a history of ice forming along the
eaves causing a backup of water as designated in Table R301.2(1), an ice barrier shall be
installed for asphalt shingles, metal roof shingles, mineral-surfaced roll roofing, slate and
slate-type shingles, wood shingles and wood shakes. The ice barrier shall consist of not
fewer than two layers of underlayment cemented together, or a self-adhering polymer-
modified bitumen sheet shall be used in place of normal underlayment and extend from the
lowest edges of all roof surfaces to a point not less than 24 inches (610 mm) inside the
exterior wall line of the building. On roofs with slope equal to or greater than eight units
19
vertical in 12 units horizontal (67-percent slope), the ice barrier shall also be applied not
less than 36 inches (914 mm) measured along the roof slope from the eave edge of the
building.
Exceptions:
1. Detached accessory structures not containing conditioned floor area.
2. Re-roofing where the existing roof covering has not been removed.
(53) Section R905.2.1 Sheathing requirements is hereby retained in its entirety with the
following revision:
R905.2.1 Sheathing requirements Asphalt shingles shall be fastened to solidly sheathed
decks. Gaps in the solid decking shall not exceed 1/8 inch.
(54) A new Section R905.2.4.2 Impact resistance of asphalt shingles is added to read as
follows:
R905.2.4.2 Impact resistance of asphalt shingles. Asphalt shingles shall be Class 4
impact resistant and be tested in accordance with UL 2218 and installed in accordance with
the manufacturer’s installation instructions.
(55) Section R908.1 General is hereby retained in its entirety with the following revision:
R908.1 General. Materials and methods of application used for re-covering or replacing
an existing roof covering shall comply with the requirements of Chapter 9.
Exceptions:
1. Reroofing shall not be required to meet the minimum design slope requirement of
one-quarter unit vertical in 12 units horizontal (2-percent slope) in Section R905
for roofs that provide positive roof drainage.
2. For roofs that provide positive drainage, re-covering or replacing an existing roof
covering shall not require the secondary (emergency overflow) drains or scuppers
of Section R903.4.1 to be added to an existing roof.
3. 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 R1004.1 General is hereby retained in its entirety with the following amendments:
20
R1004.1 General. Factory-built fireplaces shall be listed and labeled and shall be installed
in accordance with the conditions of the listing. Factory-built fireplaces shall be tested in
accordance with UL 127. Solid fuel fireplaces, fireplace stoves and solid-fuel-type room
heaters shall also comply with Section 5-110 of the City Code and shall be provided with
a spark arrestor.
(57) Section R1004.4 Unvented Gas log Heaters is hereby deleted in its entirety.
(58) Section N1101.5 (R103.2) Information on construction documents, is hereby kept
and preserved in its entirety with the following revision:
N1101.5 (R103.2) Information on construction documents. 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. Construction documents shall
be drawn to scale upon suitable material. Electronic media documents are permitted to be
submitted when approved by the building official. Construction documents shall be of
sufficient clarity to indicate the location, nature and extent of the work proposed, and shows
in sufficient detail pertinent data and features of the building, systems and equipment as
herein governed. Details shall include, but are not limited to, as applicable:
1. Insulation materials and their R-values.
2. Fenestration U-factors and solar heat gain coefficients
(SHGC).
3. Area-weighted U-factor and solar heat gain coefficient
(SHGC) calculations.
4. Mechanical system design criteria.
5. Mechanical and service water heating systems and
equipment types, sizes and efficiencies.
6. Equipment and system controls.
7. Duct sealing, duct and pipe insulation and location.
8. Air sealing details.
(59) Table N1102.1.2 (Table R402.1.2) Insulation and fenestration requirements by
component is hereby retained in its entirety with the following revisions:
TABLE N1102.1.2
INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENTa
21
CLIMATE ZONE
HEATING
SYSTEM
TYPE
FENESTRATION
U-FACTORb
SKYLIGHTb
U-FACTOR
GLAZED
FENESTRATION
SHGC
CEILING
R-
VALUE
WOOD
FRAME
WALL
R-VALUE f
g
MASS
WALL
R-
VALUEg
FLOOR
R-
VALUEe
BASEMENTc
WALL
R-VALUE
SLABd
R-
VALUE
&
DEPTH
CRAWLc
SPACE
WALL
R-
VALUE
Non-Electric
heat
0.30 0.55 NR 49 20 or
13 + 5
13/17 30 10/13h
15/19i
10,2 ft 10/13j
15/19i
Electric heat 0.30 0.55 NR 49 20+5 15/19 30 15/19 10,3 ft 15/19
For SI: 1 foot = 304.8 mm.
NR = Not Required.
a. R-values are minimums. U-factors and SHGC are maximums. Where insulation is installed in a cavity that is less than the label or design
thickness of the
insulation, the installed R-value of the insulation shall be not less than the R-value specified in the table.
b. The fenestration U-factor column excludes skylights. The SHGC column applies to all glazed fenestration.
Exception: In Climate Zones 1 through 3, skylights shall be permitted to be excluded from glazed fenestration SHGC requirements provided that
the SHGC
for such skylights does not exceed 0.30.
c. “10/13” means R-10 continuous insulation on the interior or exterior of the home or R-13 cavity insulation on the interior of the basement wall.
“15/19” means
R-15 continuous insulation on the interior or exterior of the home or R-19 cavity insulation on the interior of the basement wall. Alternatively,
compliance
with “15/19” shall be R-13 cavity insulation on the interior of the basement wall plus R-5 continuous insulation on the interior or exterior of the
home.
d. R-5 insulation shall be provided under the full slab area of a heated slab in addition to the required slab edge insulation R-value for slabs. as
indicated in the
table. The slab edge insulation for heated slabs shall not be required to extend below the slab.
e. There are no SHGC requirements in the Marine Zone.
f. Basement wall insulation shall not be required in warm-humid locations as defined by Figure N1101.10 and Table N1101.10.
g. Alternatively, insulation sufficient to fill the framing cavity providing not less than an R-value of R-19.
h. The first value is cavity insulation, the second value is continuous insulation. Therefore, as an example, “13+5” means R-13 cavity insulation
plus R-5
continuous insulation.
i. Mass walls shall be in accordance with Section N1102.2.5. The second R-value applies where more than half of the insulation is on the interior
of the masswall.
j. All rim joists and adjoining plates shall be air-sealed and insulated using spray foam insulation to R-15 minimum.
k. All rim joists and adjoining plates shall be air-sealed.
l. R-15 batt is allowed for existing dwellings with uninsulated basements.
(60) Table N1102.1.4 (Table R402.1.4) Equivalent U-Factors is hereby deleted in its entirety
and the following is hereby added in lieu thereof:
TABLE N1102.1.4
EQUIVALENT U-FACTORSa
a. Non-fenestration U-factors shall be obtained from measurement, calculation or an approved source.
b. Where more than half the insulation is on the interior, the mass wall U-factor shall be the same as the frame
wall U-factor.
(61) Section N1102.2 (R402.2) Specific insulation requirements is hereby retained in its
entirety with the following amendments:
N1102.2 (R402.2) Specific insulation requirements (Prescriptive) In addition to the
requirements of Section N1102.1, insulation shall meet the specific requirements of
Sections N1102.2.1 through N1102.2.13. All insulation shall be installed to meet
HEATING SYSTEM
TYPE
FENESTRATION
U-FACTOR
SKYLIGHT
U-FACTOR
CEILING
R-VALUE
FRAME WALL
U-FACTOR
MASS
WALL
U-FACTORb
FLOOR
U-FACTOR
BASEMENT
WALL
U-FACTOR
CRAWL
SPACE
WALL
U-FACTOR
Nonelectric heat 0.30 0.55 0.026 0.060 0.082 0.033 0.050 0.055
Electric heat 0.30 0.55 0.026 0.048 0.060 0.033 0.050 0.055
22
Residential Energy Services Network (RESNET) Grade I standard with six-sided
encapsulation.
(62) Section N1102.2.3 (R402.2.3) Eave baffles is hereby retained in its entirety with the
following revision:
N1102.2.3 (R402.2.3) Eave baffles and blocks (Mandatory). For air permeable
insulations in vented attics with ventilation from open or box soffits, a baffle shall be
installed to provide ventilation from the soffit to the attic adjacent to each soffit or eave
vent. In the case of continuous soffit vents, enough baffles shall be installed to maintain
the required attic ventilation from the soffit. The ventilation baffles shall extend over the
top of the attic insulation between rafters or trusses, maintaining a minimum 1” clear
opening below the roof deck and sufficient space for the minimum depth of attic insulation.
The baffle shall be permitted to be any solid material. All other spaces between rafters or
trusses shall be blocked full height, at the outside edge of the exterior wall top plate, with
air impermeable materials so as to contain the attic insulation to a minimum R-19 over the
exterior wall top plate.
(63) Section N1102.2.10 Slab-on-grade floors is hereby retained in its entirety with the
following revision:
N1102.2.10 Slab-on-grade floors (Mandatory) Slab-on-grade floors with a floor surface
less than 12 inches (305 mm) below grade shall be insulated in accordance with Table
N1102.1.2. The insulation shall extend downward from the top of the slab on the outside
or inside of the foundation wall. Insulation located below grade shall be extended the
distance provided in Table N1102.1.2 by any combination of vertical insulation, insulation
extending under the slab, or insulation extending out from the building. Insulation
extending away from the building shall be protected by pavement or by not less than 10
inches (254 mm) of soil. The top edge of the insulation installed between the exterior wall
and the edge of the interior slab shall be permitted to be cut at a 45-degree (0.79 rad) angle
away from the exterior wall. Slab-edge insulation is not required in jurisdictions designated
by the building official as having a very heavy termite infestation.
(64) A new Section N1102.2.14 (R402.2.14) Rim insulation requirements is hereby added
to read as follows:
N1102.2.14 (R402.2.14) Rim insulation requirements All rim plates and rim joist that
are part of the thermal envelope shall be air-sealed. All rim plates and rim joist that are part
of the thermal envelope shall be insulated using spray foam materials to R-15 minimum
when the basement walls are insulated to 10/13 in accordance with Table N1102.1.2.
Where spray foam insulation is not used at the rim joist and adjoining plates, the rim joists
and adjoining plates shall be insulated to minimum R-19.
(65) Section N1102.4.1.2 (R402.4.1.2) Testing is hereby retained in its entirety with the
following amendments:
23
N1102.4.1.2 (R402.4.1.2) Testing. The building or dwelling unit shall be tested and
verified as having an air leakage rate of not exceeding five air changes per hour in Zones
1 and 2, and three air changes per hour in Zones 3 through 8. Testing shall be conducted in
accordance with ASTME E779 or ASTEM E1827 and reported at a pressure of 0.2 inch
w.g. (50 Pascals). Where required by the building official, testing shall be conducted by an
approved third party. A written report of the results of the test shall be signed by the party
conducting the test and provided to the building official. Testing shall be performed at any
time after creation of all penetrations of the building thermal envelope. Testing shall
comply with the City of Fort Collins Building Code Air Tightness Testing Protocols for
new attached and detached single family dwellings.
. . .
(66) Section N1102.5 Maximum fenestration U-factor and SHGC (Mandatory) is hereby
deleted in its entirety and the following is hereby added in lieu thereof:
N1102.5 (R402.5) Maximum fenestration U-factor and SHGC (Mandatory). For new
construction and additions that require a building permit, the area-weighted average
maximum fenestration U-factor permitted using trade-offs from Section N1102.1.4 or
N1105 shall be 0.40 for vertical fenestration, and 0.75 for skylights.
(67) Section N1103.3.1 (R403.3.1) Insulation is hereby retained in its entirety with the
following amendments:
N1103.3.1 (R403.3.1) Insulation (Mandatory). Supply and return ducts in attics shall be
insulated to an R-value of not less than R-8 for ducts 3 inches (76 mm) in diameter and
larger and not less than R-6 for ducts smaller than 3 inches (76 mm) in diameter. Supply
and return ducts in other portions of the building shall be insulated to not less than R-6 for
ducts 3 inches (76 mm) in diameter and to not less than R-4.2 for ducts smaller than 3
inches (76.2 mm) in diameter.
Exception: Ducts or portions thereof located completely inside the building thermal
envelope.
(67) Section N1103.3.7 (R403.3.7) Ducts located in conditioned space is hereby retained in
its entirety with the following revision:
N1103.3.7 (R403.3.7) Ducts located in conditioned space. For ducts to be considered as
inside a conditioned space, the duct system shall be located completely within the
continuous air barrier and within the building thermal envelope.
(68) Section N1105.1 (R405.1) Scope is hereby retained in its entirety with the following
revision:
N1105.1 (R405.1) Scope. This section establishes criteria for compliance using simulated
energy performance analysis. Such analysis shall include heating, cooling, and service
24
water heating energy only. In addition, requirements for the Simulated Performance
Alternative are detailed within the City of Fort Collins Residential New Construction
Simulated Performance Alternative (SPA) Guide.
Exception: In addition to all Mandatory sections, new buildings, additions, or alterations
where the primary heat source is electrical shall comply with prescriptive portions of the
code.
(69) A new Section M1309 Testing and verification is hereby added to read as follows:
M1309 Testing and verification. Installed heating, cooling and ventilation systems shall
be performance-tested and adjusted per City of Fort Collins, Residential New Construction
Mechanical Systems Testing Guide and to operate within design specifications, in
accordance with ANSI/ACCA QI 5-2010 HVAC Quality Installation Specification.
Documentation of results shall be submitted to the building official prior to the issuance of
the Certificate of Occupancy.
(70) Section M1401.3 Equipment and appliance sizing is hereby deleted in its entirety and the
following is hereby added in lieu thereof:
M1401.3 Heating and cooling system design. The design of new heating and cooling
systems shall meet the requirements of this Section. Design documents shall be submitted
to the building official at the time of application for a building permit.
M1401.3.1 Equipment sizing. Heating and cooling equipment shall be sized in accordance
with ACCA Manual S, based on design building loads calculated in accordance with
ACCA Manual J, or other equivalent methodology approved by the building official, using
thermal design parameters in Table N1101.1 as amended. The total equipment output
capacity shall be between the following limits, as applicable for the equipment type:
1. 95% and 115% of calculated system cooling load, for air conditioners and heat
pumps;
2. 95% and 125% of calculated system cooling load, for heat pumps with winter
heating dominated requirements;
3. 100% and 140% of calculated system heating load, for warm air systems, unless
dictated by the cooling equipment selection; and
4. 100% and 115% of calculated system heating load, for heating boilers.
Where no available equipment is within the applicable capacity limits, the next largest
nominal piece of equipment that is available may be used.
M1401.3.2 Room loads. Room-by-room design heating and cooling loads shall be
calculated.
25
M1401.3.3 Matched components. Air-conditioning, Heating and Refrigeration Institute
(AHRI) matched evaporators, condensing units and air handlers shall be required.
(71) Section, M1414.1 General is hereby retained in its entirety with the following revision:
M1414.1 General. 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.
(72) A new 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 back-drafting 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.
(73) Section M1502.4.2 Duct installation is hereby retained in its entirety with the following
revision:
M1502.4.2 Duct installation. Exhaust ducts shall be supported at intervals not to exceed
12 feet (3658 mm) and shall be secured in place. The insert end of the duct shall extend
into the adjoining duct or fitting in the direction of airflow. Exhaust duct joints shall be
sealed in accordance with Section M1601.4.1 and shall be mechanically fastened. Ducts
shall not be joined with screws or similar fasteners. Where dryer exhaust ducts are enclosed
in wall or ceiling cavities, such cavities shall allow the installation of the duct without
deformation.
(74) Section M1505.4 Whole-house mechanical ventilation system is hereby deleted in its
entirety and the following is hereby added in lieu thereof:
M1505.4 Whole-dwelling unit mechanical ventilation system. For new buildings, a
mechanical exhaust system, supply system, or combination thereof shall be installed for
each dwelling unit to provide whole-dwelling unit ventilation. Such system shall comply
with Sections M1505.4.1 through M1505.4.4. System design documents shall be submitted
to the Building Official at the time of application for a building permit.
(75) Section M1601.1 Duct design is hereby retained in its entirety with the following revision:
M1601.1 Duct design. Duct systems serving heating, cooling and ventilation equipment in
new buildings or new systems in additions shall be designed and fabricated in accordance
with the provisions of this section and ACCA Manual D or other approved methods.
26
(76) Section M1601.1.1 Above-ground duct systems, is hereby retained in its entirety with the
exception of subsection 7 (including subsections 7.1 through 7.5), which is stricken in its
entirety.
. . .
(77) A new Section, M1601.4.11 Construction debris and contamination is hereby added to
read as follows:
M1601.4.11 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.
(78) Section M1602.2 Return air openings is hereby retained in its entirety with the following
revision:
M1602.2 Return air openings. A return air path shall be provided in all habitable rooms
by means of ducts or transfer grills. Return air openings for heating, ventilation and air
conditioning systems shall comply with all of the following:
. . .
(79) Section G2404.3 (301.3) Listed and labeled is hereby retained in its entirety with the
following revision:
G2404.3 (301.3) Listed and labeled. Appliances regulated by this code shall be listed and
labeled for the application in which they are used unless otherwise approved in accordance
with Section R104.11.”
(80) Section G2406.2 (303.3) Prohibited locations is hereby retained in its entirety with the
exception of subsections 3 and 4 which are stricken in their entirety.
…
(81) Section G2407.11 (304.11) Combustion air ducts is hereby retained in its entirety with the
following revision:
G2407.11(304.11) Combustion air ducts. Combustion air ducts shall comply with all of
the following:
1. Ducts shall be constructed of galvanized steel complying with Chapter 16 or of a
material having equivalent corrosion resistance, strength and rigidity.
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,
27
unobstructed stud and joist spaces shall not be prohibited from conveying combustion air,
provided that not more than one required fireblock is removed.
…
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.
…
(82) Section G2415.12 (404.12) Minimum burial depth is hereby retained in its
entirety with the following revision:
G2415.12 (404.12) Minimum burial depth. Underground piping systems shall be
installed a minimum depth of 18 inches (457 mm) below grade, all other pipe materials
shall be installed a minimum depth of 12 inches below grade.
(83) Section G2415.12.1 (404.12.1) Individual outside appliance is hereby deleted in its
entirety.
(84) Section G2417.4.1 (406.4.1) Test pressure is hereby deleted in its entirety and the
following is hereby added in lieu thereof:
G2417.4.1 (406.4.1) Test pressure. The test pressure to be used for non-welded pipe shall
be 10psi minimum and 60 psi for welded pipe.
(85) Section G2425.8 (501.8) Appliances not required to be vented is hereby kept and
preserved in its entirety with the following amendments:
G2425.8 (501.8) Appliances not required to be vented. The following appliances shall
not be required to be vented.
1. Ranges.
2. Electric built-in domestic cooking units listed and marked for optional venting.
3. Hot plates and laundry stoves.
4. Type 1 clothes dryers (Type 1 clothes dryers shall be exhausted in accordance with
the requirements of Section G2439).
5. Refrigerators.
6. Counter appliances.
Where the appliances listed in Items 5 through 7 are installed so that the aggregate input
rating exceeds 20 Btu per hour per cubic foot (207 W/m3) of volume of the room or space
in which such appliances are installed, one or more shall be provided with venting systems
or other approved means for conveying the vent gases to the outdoor atmosphere so that
the aggregate input rating of the remaining unvented appliances does not exceed 20 Btu
per hour per cubic foot (207 W/m3). Where the room or space in which the appliance is
28
installed is directly connected to another room or space by a doorway, archway or other
opening of comparable size that cannot be closed, the volume of such adjacent room or
space shall be permitted to be included in the calculations.
(86) Section G2427.5.5.1 (503.5.6.1) Chimney lining is hereby retained in its entirety with
the following revision:
G2427.5.5.1 (503.5.6.1) Chimney lining. Chimneys shall be lined in accordance with
NFPA 211.
(87) Section G2427.6.5 (503.6.6) Minimum height is hereby retained in its entirety with the
following revision:
G2427.6.5 (503.6.6) Minimum height. A Type B or L gas vent shall terminate at least 5
feet (1524 mm) in vertical height above the highest connected appliance draft hood or flue
collar. A Type B-W gas vent shall terminate not less than 12 feet (3658 mm) in vertical
height above the bottom of the wall furnace. All gas vents shall terminate a minimum of
22 inches (559 mm) above the surface or grade directly below.
(88) Section G2445 (621), Unvented Room Heaters, is hereby deleted in its entirety.
(89) A new Section G2447.6 (623.8) Kitchens with gas cooking is hereby added to read as
follows:
G2447.6 Kitchens with gas cooking. Residential kitchens with gas cooking appliances
shall be supplied with an exhaust system vented to the outside in accordance with section
M1503. 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.
(90) A new Section G2451.3 (630.3) Combustion and ventilation air is hereby added to read
as follows:
G2451.3 (630.3) Combustion and ventilation air Where 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.
(91) Section P2903.2 Maximum flow and water consumption is hereby retained in its entirety
with the following amendments:
P2903.2 Maximum flow and water consumption. The maximum water consumption
flow rates and quantities for all plumbing fixtures and fixture fittings shall be in accordance
with Table P2903.2 and such fixtures shall be Environmental Protection Agency (EPA)
29
WaterSense® labeled fixtures, excluding fixtures and fixture fittings that are not labeled
under the WaterSense® program.
(92) Table P2903.2 is hereby retained in its entirety with the following amendments:
Table P2903.2 Maximum Flow Rates and Consumption For Plumbing Fixtures and
Fixture Fittings b
PLUMBING FIXTURE
OR FIXTURE FITTING
MAXIMUM FLOW RATES
Lavatory faucet
1.5 gpm at 60 psi
Shower heada
1.8 gpm at 80 psi
Sink faucet
1.8 gpm at 60 psi
Water closet
1.28 gallons per flushing cycle, with minimum MaP threshold of 600 grams. Dual flush
gallons per flushing cycle: Average of three flushes (two reduced flushes and one full flush)
For SI: 1 gallon per minute = 3.785 L/m, 1 pound per square inch = 6.895kPa
a. A handheld shower spray is also a shower head
b. Consumption tolerances shall be determined from referenced standards.
(93) A new Section E3401.5 Electrical Vehicle Ready is hereby added to read as follows:
Section E3401.5 Electrical Vehicle Ready. All new single family dwellings with an
attached garage or carport shall be provided with an empty conduit of 1/2 inch (12.7 mm)
minimum, installed from the dwellings electrical panel board to a junction box in readily
accessible location in the garage or carport, capable of supporting a 30 ampere 220 volt
outlet.
(94) A new Section E3401.6 Photovoltaic Ready is hereby added to read as follows:
Section E3401.6 Photovoltaic Ready All new single family dwellings shall be provided
with an empty metallic conduit of 3/4 inch (19.05 mm) minimum, installed from the
dwellings attic space beneath the roof which most likely would support the majority of
installed photovoltaic system, to a junction box located within 12 inches of the dwellings
electrical meter or connected directly to the dwellings electrical panel board.
(95) Chapter 44 Referenced Standards is hereby retained in its entirety with the
following amendments:
…
ANSI/ACCA QI 5-2007 HVAC Quality Installation Specification.
Referenced in Amended 2012 IRC Section M1309 Performance verification
Installation Masters™ Testing and Certification Program
Referenced in Amended 2012 IRC Section R703.8.1 Fenestration installation
30
CDPH California Department of Public Health
1615 Capitol Avenue
Sacramento, CA 95814
CDPH 01350 Standard Method for Testing VOC emissions from indoor sources
Referenced in Amended 2012 IRC Section R325.1 Low-volatile organic compound
(VOC) materials.
FSC Forest Stewardship Council U.S. (FSC-US)
212 Third Avenue North, Suite 504
Minneapolis, MN 55401
GEI GREENGUARD Environmental Institute
2211 Newmarket Parkway, Suite 110
Marietta, GA 30067
GGPS.001.GREENGUARD IAQ Standard for Building Materials, Finishes and
Furnishings
Referenced in Amended 2012 IRC Section R325.1 Low-volatile organic compound
(VOC) materials.
Green Seal® 1001 Connecticut Avenue, NW
Suite 827
Washington, DC 20036-5525
GS-11 Paintings and Coatings
GS-43 Recycled Content Latex Paints
Referenced in Amended 2012 IRC Section R325.1 Low-volatile organic compound
(VOC) materials.
HVI Home Ventilating Institute
1000 N Rand Rd, Ste 214
Wauconda, IL 60084 USA
HVI referenced standard HVI 915, Procedure for Loudness Rating of Residential Fan
Products
Referenced in Amended 2012 IRC Section M1507.4.2.6. Sound ratings for fans.
IDA International Dark-Sky Association
3225 N. First Avenue
Tucson, Arizona 85719
IDA fixture seal of approval (FSA) third-party certification for luminaires that minimize
glare, reduce light trespass, and don’t pollute the night sky.
http://www.darksky.org/
http://www.darksky.org/outdoorlighting/mlo
http://www.darksky.org/outdoorlighting/about‐fsa
RESNET® Mortgage Industry National Home Energy Rating Systems Standards
Residential Energy Services Network, Inc.
P.O. Box 4561
31
Oceanside, CA 92052-4561
http://resnet.us
RESNET® reference standard Grade I and Grade II Insulation
Referenced in Amended 2012 IRC Section N1102.2 Specific insulation requirements.
…
(96) APPENDIX E, MANUFACTURED HOUSING USED AS DWELLINGS, is hereby
adopted in its entirety.
(97) APPENDIX F, RADON CONTROL METHODS, is hereby retained in its
entirety with the following revision
…
AF101.1 General. This appendix contains requirements for all radon-resistant
construction required for all new dwellings constructed under this code.
…
AF103.1 General. The following construction techniques are intended to resist radon entry
and prepare the building for post-construction radon mitigation.
AF103.2 Subfloor preparation. A layer of gas-permeable material shall be placed under
all concrete slabs and other floor systems that directly contact the ground and are within
the walls of the living spaces of the building, to facilitate future installation of a subslab
depressurization system, if needed. Each radon reduction vent pipe riser shall serve no
more than 4000 square feet of uninterrupted under slab/floor area. The gas-permeable layer
shall consist of one of the following:
1. A uniform layer of clean aggregate, not less than 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.
2. A uniform layer of sand (native or fill), a minimum of 4 inches (102 mm) thick,
overlain by a layer or strips of geotextile drainage matting designed to allow the lateral
flow of soil gases.
3. Other materials, systems or floor designs with demonstrated capability to permit
depressurization across the entire subfloor area.
…
AF103.5 Passive submembrane depressurization system.
In buildings with crawl space foundations, the following components of a passive
submembrane depressurization system shall be installed during construction.
32
AF103.5.2 Soil-gas-retarder. The soil in crawl spaces shall be covered with a continuous
layer of minimum 6-mil (0.15 mm) polyethylene or 3 mil (0.75 mm) cross laminated
polyethylene soil gas retarder. The ground cover shall be lapped not less than 12 inches at
joints and sealed or taped. The edges of the ground cover shall extend a minimum of 12
inches (152 mm) up onto all foundation walls enclosing the under-floor space and be sealed
to the wall and any footing pads. 6 mil polyethylene shall also be sealed and mechanically
fastened to the wall. An interior perimeter drain tile loop shall be connected to a plumbing
tee or other approved connection as per AF103.5.3.
AF103.13 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 receptacle outlet shall be provided within 4 feet
(1.219 m) of and within sight from designated fan locations and installed so as to not be
covered by insulation. A light fixture shall be installed in the area of future fan location.
…
SECTION AF 102 DEFINITIONS
SOIL-GAS-RETARDER. A continuous membrane of 6-mil (0.15 mm) polyethylene, 3-
mil (0.075 mm) cross-laminated polyethylene or other equivalent material used to retard
the flow of soil gases into a building.
(98) APPENDIX H, PATIO COVERS, is hereby adopted in its entirety.
(99) APPENDIX M, HOME DAY-CARE R-3 OCCUPANCIES, is hereby adopted in its
entirety.
(100) APPENDIX Q, TINY HOUSES, is hereby adopted in its entirety.
Section 4. The City Attorney and the City Clerk are authorized to modify the formatting
and to make such other amendments to this Ordinance as necessary to facilitate publication in the
Fort Collins Municipal Code; provided, however, that such modifications and amendments shall
not change the substance of the Code provisions.
33
Introduced, considered favorably on first reading, and ordered published this 18th day of
December, A.D. 2018, and to be presented for final passage on the 2nd day of January, A.D. 2019.
Mayor
ATTEST:
City Clerk
Passed and adopted on final reading on the 2nd day of January, A.D. 2019.
Mayor
ATTEST:
City Clerk
34
NOTICE OF PUBLIC HEARING
NOTICE is hereby given of a public hearing to be held before the City Council of the City
of Fort Collins, Colorado, on the 4th day of December, A.D., 2018 at 6:00 p.m., or as soon
thereafter as the matter may come on for hearing, in the Council Chambers at the City Hall, 300
LaPorte Avenue, Fort Collins, Colorado for the purpose of considering the adoption of ordinances
adopting by reference the 2018 International Building Code, 2018 International Residential Code,
2018 International Energy Conservation Code, 2018 International Mechanical Code, and the
2018 International Fuel Gas Code, 2018 International Existing Building Code, and the 2018
International Pool and Spa Code, together with local amendments, promulgated by the
International Code Council.
Not less than one (1) copy of said Codes has been, and now is on file in the Office of the
City Clerk of the City of Fort Collins and is available for public inspection.
The purpose of the International Building Code, International Residential Code,
International Energy Conservation Code, International Mechanical Code, the International Fuel
Gas Code, 2018 International Existing Building Code, and the 2018 International Pool and Spa
Code adopted by said ordinance is to provide for protection of public health and safety and general
welfare.
The City of Fort Collins will make reasonable accommodations for access to City services,
programs and activities and will make special communication arrangements for persons with
disabilities. Please call 221-6515 (V/TDD: Dial 711 for Relay Colorado) for assistance.
This notice is given and published by order of the City of Fort Collins, Colorado.
Dated at Fort Collins, Colorado this 18th day of November, A.D. 2018.
Delynn Coldiron
City Clerk