HomeMy WebLinkAbout073 - - AMENDING CHAPTER 5, ARTICLE II, DIVISION 2, OF THE CITY CODE FOR THE PURPOSE OF REPEALING THE 2012 IORDINANCE NO. 073, 2017,
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING CHAPTER 5, ARTICLE 11, DIVISION 2, OF THE CODE
OF THE CITY OF FORT COLLINS FOR THE PURPOSE OF REPEALING THE 2012
INTERNATIONAL ENERGY CONSERVATION CODE(IECC) AND ADOPTING THE
2015 INTERNATIONALENERGY CONSERVATION CODE, WITH AMENDMENTS
WHEREAS, since 1924, the City has reviewed, amended and adopted the latest
nationally recognized building standards available for the times; and
WHEREAS, upon recommendation of City staff, the City Council has determined that it
is in the best interests of the City to align the five interconnected basic.construction codes under
one publication year; and
WHEREAS, the five interconnected basic construction codes are the International
Building Code, International Residential Code, International Mechanical Code, International
Fuel Gas Code, and International Energy Conservation Code; and
WHEREAS, the City Council has determined that the 2015 publication year of the five
interconnected basic construction codes ought to be adopted- and that their counterpart codes
previously adopted should be repealed, both in order to align the publication years of the codes
and also because the 2015 publications contain improvements in construction code regulation;
and
WHEREAS, City staff has conducted a significant public outreach program, working
with the regulated construction industry and building professionals; and
WHEREAS, the adoption of the five interconnected basic construction codes has been
presented to and recommended by the Affordable Housing Board, the Commission on Disability,
the Air Quality Advisory Board, the Natural Resources Advisory Board, the Building Review
Board, the Electric Board, the Landmark Preservation Commission and the Water Board; and
WHEREAS, the City Council has determined that it is in the best interest of the health,
safety and welfare of the City and its.citizens that the 2012 International Energy Conservation
Code, as adopted and amended by the City pursuant to Ordinance No. 019, 2014, be repealed,
and that in its place, the 2015 International Energy Conservation\Code be adopted, with local
amendments; and
WHEREAS, pursuant to the City Charter 11, 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
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 2015 International Energy
Conservation Code on May 21, 2017, and May 28, 2017; and
WHEREAS, attached as Exhibit "A" and incorporated herein by reference is the Notice
of Public Hearing dated May 14, 2017, that was so published and which the Council hereby finds
meets the requirements of Article II, Section 7 of the City Charter.
NOW, THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY OF
FORT COLLINS as follows:
Section 1. That Section. 5-26(c) of the Code of the City of.Fort Collins is hereby
amended to read as follows:
c) Pursuant to the power and authority conferred on the City Council by Section 31-
16-202, C.R.S., and Article II, Section 7 of the Charter, the City Council hereby repeals
the 2012 International Energy Conservation Code (2012 IECC), and adopts, as the
energy conservation code of the City, the 2015 International Energy Conservation Code
2015 IECC) 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, except as
amended pursuant to Section 5-31 of the City Code, and which shall apply exclusively to
the design and.construction of all buildings that are classified as residential buildings not
more than three (3) stories above grade and their systems; new portions of such existing
buildings and their systems; and new systems and equipment in such existing buildings,
exclusive of detached one- and two-family dwellings, multiple single-family dwellings
townhouses), for the purpose of establishing minimum requirements for minimum
energy efficiency. None of the 2015 International Energy Conservation Code
Appendices are hereby adopted.
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Section 2. That Section 5-31 of the Code of the City of Fort Collins is hereby,
amended to read as follows:
Sec. 5-31. Amendments and deletions to the 2015 International Energy Conservation
Code
The 20125 INTERNATIONAL ENERGY CONSERVATION CODE adopted in § 5-26(c) is hereby
amended in the following respects:
1) Section CIOL.1 Title is hereby retained in its entirety with the following amendments:
C101.1 Title. This code shall be known as the International Energy Conservation Code
of the City of Fort Collins and shall be cited as such. It is referred to herein as "this
code."
2) Section C101.4 Applicability" is hereby retained in its entirety with the following
amendments:
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Information contained in the amended Commercial Sections: CIOI.I Title; C103.6
Permits; 007 Fees; 009 Board of Appeals; CIIO Violations; 010.2 Work
commencing before permit issuance; C202 Definitions; C301.4 Exterior and Interior
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design parameters; C402.2 Specific insulation requirements, shall be applicable to the
corresponding Residential Sections and shall have the same meaning.
3) A new Section C101.4.2 Energy assessment is hereby added to,read as follows:
C101.4.2 Energy assessment. Prior to any alterations, an energy assessment shall be
completed and submitted to the building official.
Exceptions: Energy assessments are not required in the following cases.
1. Buildings for which the first Certificate of Occupancy was issued after October
2010.
2. First-time,interior finishes.
3.A building that has undergone an energy assessment within the previous three
years.
4. Alterations to the HVAC, lighting, power, and exterior walls systems, or
replacement of such with a construction valuation of less than $50,000.
5-. Residential buildings.
4) A new Section C103.6 Permits is hereby added to read as follows:
C103.6 Permits. Procedures related to permits, required inspections, payment of fees and
obtaining required approvals shall be as set forth in Section 105 of the adopted
International Building Code, entitled `Permits'.
5) Section C107 Fees is hereby deleted and replaced in its entirety and the following is
hereby added in lieu thereof:
C107 Fees. All items relating to fees shall be as specified in Section 109 of the adopted
International Building Code, entitled "Fees."
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6) Section 009 Board of Appeals is hereby deleted and replaced in its entirety and the
following is hereby added in lieu thereof:
C109 Appeals. Appeals of decisions, determinations and interpretations of this code
shall be made pursuant to the applicable provisions of Section 113 of the adopted
International Building Code, entitled `Board of Appeals."
7) A new Section CHO Violations is hereby added to read as follows:
C110.1 Violations. 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,
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shall be guilty of a misdemeanor and shall,be subject to the penalties and fines specified
in Section 1-15 of the City.Code.
8) A new Section C110.2 Work commencing before permit issuance is hereby added to
read as follows:
C110.2 Work commencing before permit issuance. In addition to the penalties set
forth in Section 110.1, any person or firm who, before obtaining the necessary permit(s),
commences any construction of, or work on, a building, structure, electrical, gas;
mechanical or plumbing system that is not otherwise exempted from obtaining a permit,
shall be subject to a fine in addition to the standard prescribed permit fee. Said fine shall
be equal in amount.to the permit fee, except that it shall not be less than $50 nor more
than $1,000 for the first such violation. A person or firm committing the same such
violation repeatedly shall be subject to a fine equal to double the amount of the permit fee
or double the amount of the fee imposed for the preceding violation, whichever is greater,
for every such subsequent violation committed within 180 days of a previous violation.
Said fines may be appealed to the City Manager pursuant to Chapter 2, Article VI of the
City Code.
9) Section C202 DEFINITIONS, is hereby amended by adding, in alphabetical order, the
following definitions:
CONTINUOUS AIR BARRIER: The combination of interconnected materials,
assemblies, and flexible sealed joints and components of.the building thermal envelope
that provides air tightness to a specified permeability.
ELECTRIC HEAT: An indoor environmental primary heat source that is electric. A
ground-source electric heat pump designed by a licensed professional engineer shall not
be considered electric heat.
NON-ELECTRIC HEAT: An indoor environmental primary heat source that is gas or
that is a ground-source electric heat pump designed by a licensed professional engineer to
operate without the use of supplemental electric resistance heat.
10) A new Section C301.5 Exterior and Interior Local Design Parameters is hereby added
to read as follows:
Exterior and Interior,Local Design Parameters.
Winter Outdoor, Design Dry-bulb (OF) 6
Winter Indoor, Design Dry-bulb (OF) 72
Summer, Outdoor Design Dry-bulb (OF) 90
Summer, Indoor Design Dry-bulb (OF) 75
Summer, Outdoor Design Wet-bulb (OF)62
Summer;Indoor Design Wet-bulb (OF) 62
Degree Days heating 5710
Degree days cooling 694
Fort Collins is in Climate Zone 5.
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11) Section C402.I.3 Insulation component R-value-based method is hereby retained in its
entirety with the following amendments:
Exception: For buildings using electric heat at the power density of 1.5 Watts per square
foot or greater, the building thermal envelope values in Table C402.1.5 shall be
mandatory.
12) Section C402.I.4 Assembly Ufactor, Cfactor or Ffactor-based method is hereby
retained in its entirety with the following amendments:
Exception: For buildings using electric heat at the power density of 1.5 Watts per square
foot or greater, the building thermal envelope values in Table C402.1.5 shall be
mandatory.
13) Table C402.I.5 Building thermal envelope is hereby added to read as follows:
TABLE C402.1.5(Mandatory)
BUILDING THERMAL ENVELOPE REQUIREMENTS FOR ELECTRIC HEAT
Insulation Min.R-
O a ue Elements Assembly Max. Value
Roofs
Insulation Entirely above Deck U-0.039 _
R-30.0 ci
Metal Building U-0.035 R-19.0+R-11.0 Ls
Attic and Other U-0.021 R-49.0
Walls,Above Grade
R-13.3 ci
Massa U-0.080
Metal Building U-0.052
R-13.0+R-13.0 ci
Steel Framed U-0.055 R-13.0+R-10.0 ci
Wood Framed and Other U-0.051 R-13.0+R-7.5 ci
Wall,Below Grade
U-0.092 R-10.0 ci
Floors
Mass U-0.064
R-12.5 ci
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Steel Joist U-0.026 R-30.0+R-7.5 ci
Wood Framed and Other U-0.032 R-38.0
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Slab-On-Grade Floors
I R-l0 for 24 in.
Unheated F-0.540
R-15.0-for 36 in. +R-5
Heated F-0.440 ci below
Opaque Doors
Swinging U-0.37
Non-Swinging U-0.37
Fenestration Assembly Max.U
Vertical Fenestration,(up to 40%of Wall maximum)
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Nonmetal framing: allb U-0.25
Metal fr.curtainwall/storefront` U-0.35
Metal framing:entrance door` U-0.70
Metal framing:all other` U-0.45
Skylight(up to 3%of Roof maximum) U,11-0.50
SHGC U-0.40
The following definitions apply:ci=continuous insulation,Ls=liner system,NR=No(insulation)requirement.
Mass walls with a heat capacity greater than 12 Btu/ft2°F which are unfinished or finished only on the interior do not need to be insulated.
n Nonmetal framing includes framing materials other than metal with or without metal reinforcing or cladding.
Metal framing includes metal framing with or without thermal break.The"all other"subcategory includes operable windows,fixed windows,
and non-entrance doors.i
14) Section C402.2 Specific building thermal envelope insulation requirements
Prescriptive) is hereby retained'in its entirety with the following amendments:
C402.2 Specific building thermal envelope insulation requirements (Mandatory).
Insulation in building thermal envelope opaque assemblies shall comply with Sections
C402.2.1 through C402.2.6 and Table C402.1.3. In addition to the requirements of
Section C402.1, insulation shall meet the specific requirements of Sections C402.2.1
through C402.2.6. All insulation shall be installed to meet Residential Energy Services -
Network (RESNET) Grade I standard.
Exception: RESNET Grade II is acceptable for cavity insulation in exterior walls that
include continuous rigid insulating sheathing and/or insulated siding with a minimum R-
value of 5, and rim joists.
15) A new Section C402.2.3.1 Thermal resistance of below-grade walls is hereby added to
read as follows:
C402.2.3.1 Thermal resistance of below-grade walls. The minimum thermal resistance
R-value) of the insulating material installed in, or continuously on, the below-grade
walls shall be R-10 and shall extend to a depth of 10 feet (3,048 mm) below the outside
finish ground level, or to the level of the floor, whichever is less.
16) Sections C402.5 Air leakage-thermal envelope (Mandatory), C402.5.1 Air Barriers,
C402.5.1.1 Air barrier construction, C402.5.1.2 Air barrier compliance options, and
C402.5.1.2.1 Materials, C402.5.1.2.2 Assemblies, are hereby deleted and replaced in
their entirety and the following is hereby added in lieu thereof:
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Section C402.5 Air leakage-thermal envelope (Mandatory). The building thermal
envelope shall be designed and constructed with a continuous air barrier that complies
with the following requirements to control air leakage into, or out of, the conditioned
space. The boundary limits and size of the surface area (floor, wall, and ceiling or roof)
of the building air barrier, and of the zone or zones to be tested for maximum building air
infiltration and exfiltration, shall be clearly identified on the approved construction
drawings. All air barrier components of each building thermal envelope assembly shall
be clearly identified on construction documents and the joints, interconnections, and
penetrations'of the air barrier components shall be detailed and shall comply with the
following:
1.The air barrier shall be continuous throughout the building thermal envelope (at
the lowest floor, exterior walls, and ceiling or roof), with all joints and seams
sealed and with sealed connections between all transitions in planes and changes
in materials and at all penetrations.
2. The air barrier component of each assembly shall be joined and sealed in a
flexible manner to the air barrier component of adjacent assemblies, allowing for
the relative movement of,these assemblies and components.
3. The air barrier shall be capable of withstanding positive and negative combined
design wind, fan, and stack pressures on the air barrier without damage or
displacement, and shall transfer the load to the structure, and shall not displace
adjacent materials under full load.
4. The air barrier shall be installed in accordance with the manufacturer's
instructions and in such a manner as to achieve the performance requirements.
5. Where lighting fixtures with ventilation holes or other similar objects are to be
installed in such a way as to penetrate the continuous air barrier, provisions shall
be made to maintain the integrity of the continuous air barrier.
Compliance of the continuous air barrier for the opaque building thermal envelope shall
be demonstrated by the.following:
1. Materials. Using air-barrier materials that have an air permeability not to exceed
0.004 cfm/ft2 under a pressure differential of 0.3 in. water (1.57 lb/ft2) (0.02
L/s m2 under a pressure differential of 75 Pa) when tested in accordance with
ASTM E2178;
2.Assemblies. Using assemblies of materials and components that have an average
air leakage not to exceed 0.04 cfm/ft2 under a pressure differential of 0.3 in. water
1.57 lb/ft) (0.2 L/s m2 under a pressure differential of 75 Pa) when tested in
accordance with ASTM E2357 or ASTM E1677;
3.Testing. Testing the completed building and documenting that the air leakage rate
of the.building thermal envelope does not exceed 0.25 cfm/ft2 under a pressure
differential of 0.3 in. water (1.57 lb/ft) (0.02 L/s m2 under a pressure differential
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of 75 Pa) shall be completed in accordance with the most current version of the
City of Fort Collins Building Air Leakage Test Protocol for commercial buildings
or City of Fort Collins Building Code Protocol for New Multifamily
Building Air Tightness Testing. Documentation of the testing results shall be
submitted to the building official prior to approval. If the building fails air_leakage
testing, the testing agency is required to perform a diagnostic evaluation in
accordance with ASTM;El 186-03(2009). The testing agency can use additional
methods to discover leaks. Repairs based on these diagnostics and retesting is
required prior to submitting results to the building official.
4.Alternative Inspection. When approved by the .building official, where it is
deemed impractical to isolate and perform a blower door test on a new renovation
or addition, the renovation or addition air barrier shall be inspected for continuity
and integrity by an approved inspector.
17) Section C402.5.6 Loading dock weatherseals is hereby retained in its entirety with the
following amendments:
C402.5.6 Loading dock weatherseals. Cargo doors and loading dock doors shall be
equipped with weather-seals to restrict infiltration.
18) Section C405.2.1 Occupant sensor controls is hereby retained in its entirety with the
following amendments:
In new construction and additions that require a building permit, occupant sensor
controls shall be provided to automatically reduce connected lighting power by not less
than 50 percent during periods when no occupants are present in the following locations:
1. corridors and enclosed stairwells;
2.storage stack areas not open to the public;
3. library stack areas; and
4. parking garages.
Lighting in means of egress shall comply with the luminance or uniformity criteria
required by the International Building Code when occupied.
Exception: Automatic power reduction shall not be used to control battery back-up
emergency lighting and exit signage.
19) Section C405.2.4 Specific application controls is hereby retained in its entirety with the
following amendments:
3. In hotels and motels the lighting switched outlets, permanently wired luminaires,,
television, and heating, ventilating and air conditioning system equipment serving
each guest room shall be automatically controlled so that lighting, switched
outlets, permanently wired luminaires, and televisions will be turned off and the
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heating, ventilating and air conditioning system set point raised at least 5 degrees
Fahrenheit (3 degrees centigrade) in the cooling mode and lowered at least 5
degrees Fahrenheit (3 degrees centigrade) in the heating mode whenever the guest
room is unoccupied.
All permanently wired luminaires located in bathrooms within sleeping units in hotels,
motels, boarding houses or similar buildings shall be equipped with occupant sensors that
require manual intervention to energize circuits.
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20) Section C405.2.5 Exterior lighting controls is hereby deleted and replaced in its entirety
and the following is hereby added in lieu thereof:
C405.2.5 Exterior lighting controls. In addition to any other applicable requirements of
this IECC, all outdoor lighting controls shall comply with the following requirements.
For lighting of building fagades, parking lots, garages, canopies (sales and non-sales), and
all outdoor sales areas, automatic controls shall be installed to reduce the sum of all
lighting power (in watts) by a minimum of 50 percent two hours after normal business
closing, and to turn off outdoor lighting within 30 minutes after sunrise.
Exceptions:
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1. Lighting required by a istatute, ordinance, or regulation duly adopted for the
protection of public health, safety and/or human life, including but not limited to,
emergency lighting.
2. Lighting that is controlled by a motion sensor and photo-control.
3. Lighting for facilities that have equal lighting requirements at all hours and are
designed to operate continuously.
4. Temporary outdoor lighting.
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5.Externally illuminated signs and signs that are either internally illuminated or
have integral lamps.
21) A new Section C405.I0 Electricity distribution design is hereby added to read as
follows:
C405.10 Electricity distribution design requirements and load type isolation.
Electric distribution systems within, on or adjacent to and serving a new building shall be
designed in such fashion that each primary panel supplies only one electricity load type
as defined in Sections C405.10.1 through C405.10.5. The energy.load type served by
each distribution panel shall be clearly designated on the panel with the use served, and
adequate space shall be provided for installation of metering equipment or other data
collection devices, temporary or permanent, to measure the energy use associated with
each distribution panel.
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Exceptions:
1. Buildings or spaces with less than 600 amp electric service are exempted from
this requirement.
2. Electrical systems that are designed and constructed in such fashion that the total
usage of each of the load types as described in Sections C405.10.1 through
C405.10.5 shall be permitted to be measured through the use of installed sub-
meters or other equivalent methods as approved.
3.Group U occupancies
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C405.10.1 Heating, ventilating, and air conditioning system electric load. This
category shall include all electricity used to heat, cool, and provide ventilation to the
building including, but not limited to, fans, pumps, and cooling energy.
C405.10.2 Lighting system electric load.. This category shall include all electricity for
interior and exterior lighting used in occupant spaces and common areas.
C405.10.3 Plug loads. This category shall include all electricity use by devices, electric
appliances and equipment connected to convenience receptacle outlets.
C405.10.4 Process loads. This category shall include all electricity used by any single
load associated with activities within the building, such as, but not limited to, data
centers, manufacturing equipment and commercial kitchens, that exceed 5% of the total
energy use of the whole building.
C405.10.5 Miscellaneous loads. This category shall include all electricity use for all
other building operations and other operational loads.
22) Section C408 System commissioning is hereby deleted and replaced in its entirety and
the following is hereby added in lieu thereof:
C408 System Commissioning shall be in conformance with Section 3604 of the adopted
International Building Code, entitled "Commissioning, Operations and Maintenance."
23) TABLE R402.I.2 Insulation and Fenestration Requirements by Component is hereby
deleted and replaced in its entirety and the following is hereby added in lieu thereof:
TABLE R402.1.2
INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT
WOOD
SLAB"
CRAWFRAMEMASSFLOORBASEMENT` L`. JHEATINGGLA7_ED CEILING R-
SYSItiM
FENESTRATION SKYLIGHT°
FENESTRA77ON R-
WALL WALLR-WALL
VALUE
SPACE
U-FACTOR U-FACTOR f R- a R-VALUE WALL
TYPE SHGC VALUE ft-VALUE
VALUE+ VALUE
DEPTH
R-VALUE
Non-Electric 0.32 0.55 NR 49 20 or 13/17 30 10/13h 10,2 10/13h
heat 13+5 15/19i ft 15/19i
Electric heat 0.30 0.55 -NR 49 20+5 15/19 30 15/19 10,3 15/19
ft
For SC 1 foot=304.8=
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a. R-values are minimums. U factors and SHGC are maximums..R-19 batts compressed into a nominal 2x6 framing cavity such that the
R-value is reduced by R-I or more shall be marked with the compressed batt R-value in addition to the full thickness R-value.
b. The fenestration Ufactor column excludes skylights.The SHGC column applies to all glazed fenestration.
C. "15/19"means R-15 continuous insulation on the interior or exterior of the foundation wall or R-19 cavity insulation at the interior of
Z the foundation wall."15/19"shall be permitted to be met with R-13 cavity insulation on the interior of the foundation wall plus R-5
continuous insulation on the interior or exterior of the foundation wall. "10/13"means R-10 continuous insulation on the interior or
exterior of the foundation wall or R-13 cavity insulation at the interior of the foundation wall.
d. R-5 shall be added to the required slab edge R-values for healed slabs.
e. Insulation shall full the framing cavity,R-19 minimum.
f. First value is cavity insulation, second is insulated sheathing or siding, so"20+5"means R-20 cavity insulation plus R-5 insulated
sheathing. If structural sheathing covers 25.percent or less of the exterior, insulating sheathing is not required where structural
sheathing is used. If structural sheathing covers more than 25 percent of the exterior,structural sheathing shall be supplemented with
insulated sheathing of at least R-2.
g The second R-value applies when more than half the insulation is on the interior of the mass wall.
h. All rim joists and adjoining plates shall be air-sealed and insulated using spray foam insulation to R-15 minimum.
i. All rim joists and adjoining plates shall be air-sealed
24) TABLE R402.1.4 Equivalent U-Factors is hereby deleted and replaced in its entirety and
the following is hereby added in lieu thereof-
TABLE R402.1.4
EQUIVALENT U-FACTORSa
HEATING
FRAME
MASS
BASEMENT CRAWL
FENESTRATIONSYSTSKYLIGHT. CEILING WALL
WALL
FLOOR WALL SPACE
TYPE
EM
FACTOR U-FACTOR R-VALUE U-
U-FACTORS U-FACTOR U-FACTOR WALL
FACTOR U-FACTOR
Nonelectric heat 0.32 0.55 0.026 0.057 0.082 0.033 0.059 0.055
Electric heat 0.30 0.55 0.026 0.048 0.060 0.033 0.050 0.055
a. Non fenestration U factors shall be obtained from measurement,calculation or an approved source.
b. When more than half the insulation is on the interior,the mass wall Ufactor shall be the same as the frame
wall Ufactor.
25) Section R402.2 Specific insulation requirements (Prescriptive) is hereby retained in its
entirety with the following amendments:
R402.2 Specific insulation requirements (Mandatory). -
In addition to the requirements of Section R402.1, insulation shall meet the specific
requirements of Sections R402.2.1 through R402.2.14.
26) Section R402.2.1 Ceilings with attics spaces is hereby retained in its entirety with the
following amendments:
R402.2.1 Ceilings with attic spaces. Where Section R402.1.2 would require R-38 '
insulation in the ceiling, installing R-30 over 100 percent of the ceiling area requiring
insulation shall be deemed to satisfy the requirement for R-38 wherever the full height of
uncompressed R-30 insulation extends over the wall top plate at the eaves. Similarly,
where Section R402.1.2 would require R-49 insulation in the ceiling, installing R-38 over
100 percent of the ceiling area requiring insulation shall be deemed to satisfy the
requirement for R-49 insulation wherever the full height of uncompressed R-38
insulation extends over the wall top plate at the eaves. This reduction shall not apply to
the U-factor alternative approach in Section R402.1.4 and the total UA .alternative in
Section R402.1.5. At the eaves, the insulation extending over the exterior wall top plate
shall be R-19 minimum.
27) Section R402.2.3 Eave baffle is hereby retained in its entirety with the following
amendments:
R402.2.3 Eave baffle and blocks. 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. Baffles shall maintain an opening equal or greater than the size of the vent. The
ventilation baffle shall extend over the top of the attic insulation between rafters or
trusses, maintaining a minimum 1 inch 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 at the outside
edge of the exterior wall top plate, with air impermeable materials so as to contain the
attic insulation.
28) A new Section R402.2.14 Rim insulation, requirements is hereby added to read as
follows:
R402.2.14 Rim insulation requirements. All rim plates and rim joist which are part of
the thermal envelope shall be air-sealed. All rim plates and rim joist which 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 R402.1.2.
29) Sections 402.4.1 Building thermal envelope, R402.4.1.1 Installation, and R402.4.1.2
Testing, are hereby deleted and replaced in their entirety and the following is hereby,
added in lieu thereof:
R402.4.1 Building thermal envelope. The building, or individual dwelling units, shall be
tested and verified as having an air leakage rate not exceeding 3 air changes per hour.
Testing shall be conducted with a blower door at a pressure of 0.2 inches w.g. (50
Pascals) in accordance with Section 802 of the RESNET Mortgage Industry National
Home Energy Rating Standards or City of Fort Collins Building Code Protocol for New
Multifamily Building Air Tightness Testing. 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. Isolation of attached garages from adjoining conditioned areas shall be verified
in accordance with City of Fort Collins protocols.
Testing shall occur after rough-in and after installation of penetrations .of the building
thermal envelope, including but not limited to penetrations for utilities, plumbing,
electrical, ventilation and combustion appliances.
General requirements during testing:
1." Exterior windows and'doors, fireplace and stove doors shall be closed, but not
sealed beyond the intended weather-stripping or other infiltration control
measures.
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2. Dampers including exhaust, intake, makeup air, backdraft and flue dampers shall
be closed, but not-sealed beyond intended infiltration control measures.
3. Interior doors, if installed at the time of the test, shall be open.
4. Exterior doors for continuous ventilation systems and heat recovery ventilators
shall be closed and sealed.
5.Heating and cooling systems, if installed at the time of the test, shall be turned off.
6.Supply and return registers, if installed at the time of the test, shall be fully open.
7.` Combustion air inlets shall not be closed or otherwise obstructed.
8.Garage doors to the exterior shall be closed.
In additions or alterations to existing- buildings, air sealing compliance shall be
considered acceptable when the items listed in Table R402.4.1.1, applicable to the
method of construction, are field-verified.
30) Section R402.5 Maximum fenestration IIfactor and SHGC (Mandatory) is hereby
retained in its entirety with the following amendments:
The area-weighted average maximum fenestration U-factor permitted' using tradeoffs
from Section R402.1.5 or R405 shall be 0.40 for vertical fenestration.
31) Section R403.3.1 Insulation (Prescriptive) is hereby retained.in its entirety with the
following amendments:
R403.3.1 Insulation (Mandatory).
32) Section R403.7 Equipment sizing and efficiency rating (Mandatory) is hereby retained
in its entirety with the following amendments:
R403.7 Equipment sizing and efficiency rating (Mandatory). Heating. and cooling
equipment shall be designed in accordance with International Residential Code Section
M1401.3 and performance will be verified in accordance with International Residential
Code Section M1309.
33) Section R404.1 Lighting equipment (Mandatory) is hereby retained in its entirety with
the following amendments:
R404.1 Lighting equipment (Mandatory). Not less than 75 percent of the lamps in
permanently installed lighting fixtures shall be high-efficacy lamps or not less than 50 .
percent of the permanently installed lighting fixtures shall contain only high-efficacy
lamps.
Exception: Low-voltage lighting.
34) A new Section R404.2 Occupant sensor controls is hereby added to read as follows:
R404.2 Occupant*sensor controls. In multifamily buildings, occupant sensor controls
shall be provided to automatically reduce connected lighting power by not less than 50
percent during periods when no occupants are present in common corridors and common
enclosed stairwells.
Lighting in means of egress shall comply with the luminance or uniformity criteria
required by the International Building Code when occupied.
Exception: Automatic power reduction shall not be used,to control battery back-up
emergency lighting and exit signage.
35) Chapter 6 REFERENCED STANDARDS is hereby amended by adding, in alphabetical
order, the following additional referenced standard:
RESNETO Mortgage Industry National Home Energy Rating Systems Standards
Residential Energy Services Network, Inc.
P.O. Box 4561
Oceanside, CA 92052-4561
http://resnet.us
RESNETO reference standard Grade I and Grade R Insulation
Referenced in Amended 2012 IECC Section C402.2.
Introduced, considered favorably on first reading, and ordered published this 6th day of
June, A.D. 2017, and to be presented for final passage on the 5th day of July,A.D. 2017.
Ly Mayor
ATTEST:
vV v "
City Clerk
Passed and adopted on final reading on this 5th day of July, A.D. 2017.
ayor
ATTEST:
City Clerk
14 -
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 6th day of June, A.D., 2017 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 2015 International Building Code, 2015 International
Residential Code, 2015 International Energy Conservation Code, 2015 International
Mechanical Code, and the 2015 International Fuel Gas Code together with local amendments,
promulgated by the International Code Council.
i
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, and the International
Fuel Gas Code adopted by said ordinance is to provide for protection of public health and safety
and general welfare.
t
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.J
Dated at Fort Collins, Colorado this 14th day of May, A.D. 2017.
Wanda Winkelmarm
City Clerk