HomeMy WebLinkAbout150 - 01/02/2019 - AMENDING CHAPTER 5, ARTICLE II, DIVISION 2, OF THE CITY CODE FOR THE PURPOSE OF REPEALING THE 2015 I
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ORDINANCE NO. 150, 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 ENERGY CONSERVATION CODE AND ADOPTING THE
2018 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 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previously adopted should be repealed, both in order to align the publication years of the codes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 Energy Conservation
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repealed and that in its place, the 2018 International Energy Conservation Code be adopted, with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.
NOW, THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY OF FORT
COLLINS as follows:
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(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
the2015International Energy Conservation Code (2015 IECC), and adopts, as the energy
conservation code of the City, the 2018 International Energy Conservation Code (2018
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 2018 International Energy Conservation Code Appendices are hereby
adopted.
Section 3. That Section 5-31 of the Code of the City of Fort Collins is hereby repealed
in its entirety and reenacted to read as follows:
Sec. 5-31. Amendments and deletions to the 2018 International Energy Conservation
Code1
The 2018 International Energy Conservation Code adopted in § 5-26(c) is hereby amended in the
following respects:
(1) Section C101.1 Title is hereby retained in its entirety with the following amendments:
1 Changes to the 2018 International Energy Conservation Code are shown as follows: inserted language is
highlighted in yellow and deleted language is shown as stricken.
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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 revision:
. . .
Information contained in the amended Commercial Sections: C101.1 Title; C103.7
Permits; C104 Fees; C109 Board of Appeals; C110 Violations; C110.2 Work
commencing before permit issuance; C202 Definitions; C301.5 Exterior and Interior
design parameters; C402.2 Specific building thermal envelope 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 C103.7 Permits is hereby added to read as follows:
C103.7 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 C104 Fees is hereby deleted and replaced in its entirety and the following is hereby
added in lieu thereof:
C104 Fees. All items relating to fees shall be as specified in Section 109 of the adopted
International Building Code, entitled “Fees.”
(6) Section C109 Board of Appeals is hereby deleted and replaced in its entirety and the
following is hereby added in lieu thereof:
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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 C110.1 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, 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:
Section C301.5 Exterior and Interior Local Design Parameters. The following thermal
design parameters shall be used for mechanical load calculations and designs.
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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 5B.
(11) Section C402.1.3 Insulation component R-value-based method is hereby retained in its
entirety with the following revision:
. . .
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 C402.1.4 Assembly U-factor, C-factor or F-factor-based method is hereby
retained in its entirety with the following revision:
. . .
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 C402.1.5 Building thermal envelope is hereby added to read as follows:
Opaque elements R-value requirements shall be in accordance with Table C402.1.3 or otherwise
specified in the table below. The U-factor requirements shall be in accordance with Table
C402.1.4 or otherwise specified in the table below. Any cavities not shown below must use the
normal prescriptive table.
TABLE C402.1.5 (Mandatory)
BUILDING THERMAL ENVELOPE REQUIREMENTS FOR ELECTRIC HEAT
Building area to be insulated All other Group R Assembly max
U-value
Roofs - Insulation above deck R-30ci R-30ci 0.039
Roof - Metal bldg roof R-19+R-11 LS R-19+R-11 LS 0.035
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Roof - Attic and other R-49 R-49 0.021
Above grade wall - mass wall R-15ci R-15ci 0.08
Above grade wall - metal bldg wall R-13+R-7.5 ext ci R-13+R-7.5 ext ci 0.06
Above grade wall - metal framed
wall R-13+R-10ci R-13+R-10ci 0.052
Above grade wall - wood framed
wall
R-15+R7.5ci or
R-19+5cic
R-15+R7.5ci or
R-19+5cic 0.048
Below grade wall R-10ci R-10ci 0.092
Floor - mass R-15ci R-15ci 0.055
Floor - steel joist R-30+7.5ci R-30+7.5ci 0.029
Floor - wood joist/framing R-38 R-38 0.026
Slab on grade - unheated R-10ci for 2ft R-10ci for 2ft F-0.540
Slab on grade - heated R15 for 3ft+R-5
full slab
R15 for 3ft+R-5
full slab F-0.79 & 0.64
Opaque non-swinging doors R-4.75 R-4.75 0.37
The following definitions apply: ci = continuous insulation, Ls = liner system, NR = No (insulation) requirement.
a Nonmetal framing includes framing materials other than metal with or without metal reinforcing or cladding.
b Metal framing includes metal framing with or without thermal break. The “all other” subcategory includes operable windows, fixed windows, and non-
entrance doors.
c Class 1 vapor retarders shall not be installed on the interior of framed walls where exterior ci value is less than R-7.5.
(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 (Prescriptive)
All insulation shall be installed to meet Residential Energy Services Network (RESNET)
Grade I standard.
(15) Section C402.2.2 Above-grade walls is hereby retained in its entirety with the following
amendments:
Section C402.2.2 Above-grade walls (Mandatory)
Fenestration Assembly Max. U
Vertical Fenestration, (up to 40% of Wall maximum)
Nonmetal framing: alla
Metal fr: curtainwall/storefrontb
Metal framing: entrance doorb
Metal framing: all otherb
U-0.25
U-0.35
U-0.70
U-0.45
Skylight (up to 3% of Roof maximum)
SHGC
Uall-0.50
U-0.40
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…
(16) Section C402.2.4 Slab-on grade-perimeter insulation is hereby retained in its entirety with
the following amendments:
Section C402.2.4 Slabs-on-grade perimeter insulation (Mandatory)
…
(17) Section C402.2.5 Below-grade walls is hereby deleted and replaced in their entirety and
the following is hereby added in lieu thereof:
C402.2.5 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.
(18) Sections C402.5 Air leakage-thermal envelope (Mandatory), are hereby deleted and
replaced in their entirety and the following is hereby added in lieu thereof:
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 Sections
C402.5.1 through C402.5.8, and the building thermal envelope shall be tested in
accordance with ASTM E 779 at a pressure differential of 0.3 inch water gauge (75 Pa) or
an equivalent method approved by the code official and deemed to comply with the
provisions of this section when the tested air leakage rate of the building thermal envelope
is not greater than 0.25 cfm/ft2 (0.2.0 L/s ꞏ• m2 under a pressure differential of 75 Pa) or 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 E1186-03. 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. Where compliance is based on such testing, the building shall also comply
with Sections C402.5.5, C402.5.6 and C402.5.7.
(19) Section C405.2.1 Occupant sensor controls is hereby retained in its entirety with the
following amendments:
. . .
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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.
(20) Section C405.2.4 Specific application controls is hereby retained in its entirety with the
following revision:
…
5. In hotels and motels the sleeping units shall have control devices or systems that are
configured to automatically switch off all permanently installed luminaires, switched receptacles,
televisions and the 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.
…
(21) Section C405.2.6.1 Daylight shutoff is hereby retained in its entirety with the following
amendments:
C405.2.6.1 Daylight shutoff. Lights shall be automatically turned off when daylight is
present or within 30 minutes after sunrise.
(22) Section 405.2.6.3 Lighting setback is amended to read as follows:
C405.2.6.3 Lighting setback Exterior lighting that is not controlled in accordance with
Section C405.2.6.2 shall be controlled so that the total wattage of such lighting is
automatically reduced by not less than 50 percent by selectively switching off or dimming
luminaires from not later than one hour after business closing to not earlier than one hour
before business opening.
(23) A new Section C405.10 Electricity distribution design is hereby added to read as follows:
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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.
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
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.
(24) 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.”
(25) TABLE R402.1.2 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
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INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT
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 + 5hl
13/17 30 10/13j
15/19k
10,2 ft 10/13j
15/19k
Electric heat 0.30 0.55 NR 49 20+5 hl 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. Class 1 vapor retarders shall not be installed on the interior of framed walls where exterior ci value is less than R-7.5.
(26) 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
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 0.057 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
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 U-factor shall be the same as the frame wall
U-factor.
(27) Section R402.2.3 Eave baffle is hereby retained in its entirety with the following revisions:
R402.2.3 Eave baffle 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
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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 to a minimum R-19 over the exterior wall top plate..
(28) Section R402.2.10 Slab-on-grade floors is hereby retained in its entirety with the
following revisions:
Section R402.2.10 Slab-on-grade floors (Mandatory)
…
(29) 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.
(30) Section R402.4.1.2 Testing, is hereby retained in its entirety with the following
amendments:
R402.4.1.2 Testing. The building or dwelling unit shall be tested and verified as having an
air leakage rate not exceeding five air changes per hour in Climate Zones 1 and 2, and three
air changes per hour in Climate Zones 3 through 8. Testing shall be conducted in
accordance with Section 802 of the RESNET Mortgage Industry National Home Energy
Rating Standards and RESNET/ICC 380, ASTM E779 or ASTM E1827 and reported at a
pressure of 0.2 inch w.g. (50 Pascals). Where required by the code 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 code 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 Protocol for New
Multifamily Building Air Tightness Testing.
(31) Section R402.5 Maximum fenestration U-factor and SHGC (Mandatory) is hereby
retained in its entirety with the following revisions:
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 and 0.75 for skylights .
(32) Section R403.3.1 Insulation (Prescriptive) is hereby retained in its entirety with the
following amendments:
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R403.3.1 Insulation (Mandatory).
. . .
(33) A new Section R403.3.7 Ducts located in conditioned space is hereby deleted in its
entirety, and replaced with the following in lieu thereof:
R403.3.7 Ducts located in conditioned space. For ducts to be considered as inside conditioned
space, the duct system shall be located completely within the continuous air barrier and within the
building thermal envelope.
(34) Section R403.7 Equipment sizing and efficiency rating (Mandatory) is hereby retained in
its entirety with the following revisions:
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.
(35) 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.
(36) A new Section R405.1 Scope is hereby retained in its entirety with the following revisions:
R405.1 Scope. This section establishes criteria for compliance using simulated energy
performance analysis. Such analysis shall include heating, cooling, mechanical ventilation and
service 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.
(37) Chapter 6 REFERENCED STANDARDS is hereby amended by adding, in alphabetical
order, the following additional referenced standard:
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RESNET® Mortgage Industry National Home Energy Rating Systems Standards
Residential Energy Services Network, Inc.
P.O. Box 4561
Oceanside, CA 92052-4561
http://resnet.us
RESNET® reference standard Grade I and Grade II Insulation
Referenced in Amended 2012 IECC Section C402.2.
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.
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