Looking for Cool Roof or Cool Exterior Wall Codes, Standards, and Voluntary Programs?

AGENCY: Alabama Department of Economic and Community Affairs

WEBSITE: https://adeca.alabama.gov/energycodes/

REQUIREMENTS:

Commercial Buildings (link to Code Section C402.3 of 2015 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum 3-year aged solar reflectance index (SRI) of 64

Residential Buildings (link to Code Section R401.2.1 of 2015 IECC)

• Residential buildings in the tropical zone at elevations below 2,400 feet (731.5 m) above sea level shall be deemed to comply with this chapter where the following conditions are met:

  • Low-sloped roofs must have a minimum aged solar reflectance of 0.55 and minimum aged thermal emittance of 0.75, or

  • Minimum aged solar reflectance index of 64, or

  • The roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

Adopted 2015 IECC Amendments:

• Commercial: https://adeca.alabama.gov/wp-content/uploads/2015-Alabama-Commercial-Energy-Code.pdf

• Residential: https://adeca.alabama.gov/wp-content/uploads/Alabama-Energy-and-Residential-Code.pdf

AGENCY: City of Phoenix Department of Planning and Development

WEBSITE: https://www.phoenix.gov/pdd/devcode/buildingcode

REQUIREMENTS:

Commercial Buildings (link to Code Section C402.3 of 2018 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum 3-year aged solar reflectance index of 64

Residential Buildings (link to Code Section R401.2.1 of 2018 IECC)

• Residential buildings in the tropical zone at elevations below 2,400 feet (731.5 m) above sea level shall be deemed to comply with this chapter where the following conditions are met:

  • Low-sloped roofs must have a minimum aged solar reflectance of 0.55 and minimum aged thermal emittance of 0.75, or

  • Minimum aged solar reflectance index of 64, or

  • The roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

Adopted 2018 IECC Amendments: https://www.phoenix.gov/pddsite/Documents/2018%20International%20Energy%20Conservation%20Code%20(IECC)%20Phoenix%20Amendments.pdf

AGENCY: City of Scottsdale Green Building Program

WEBSITE: https://www.scottsdaleaz.gov/green-building-program

REQUIREMENTS:

Commercial Buildings (link to Code Section amendments to C402.3 of 2021 IECC)

• Section C402.3, Roof solar reflectance and thermal emittance, is amended to read as follows, with the exceptions and table remaining unchanged. C402.3 Roof solar reflectance and thermal emittance. Low-sloped roof surfaces over conditioned and unconditioned spaces in Climate Zones 0 through 3 shall comply with one or more of the options in Table C402.3:

  • Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

  • Minimum 3-year aged solar reflectance index (SRI) of 64 over conditioned and non-conditioned spaces

Residential Buildings (link to amended Section R402.6 in 2021 IECC)

• R402.6 Roof solar reflectance and thermal emittance. Where not prohibited by the city environmentally sensitive lands ordinance (ESLO), low-sloped roof surfaces over conditioned and unconditioned spaces in Climate Zones 0 through 3 shall comply with one or more of the options in Table R402.6.

  • Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

  • Minimum 3-year aged solar reflectance index of 64

AGENCY: California Energy Commission

WEBSITE: https://www.energy.ca.gov/programs-and-topics/programs/building-energy-efficiency-standards/2022-building-energy-efficiency

REQUIREMENTS:

Mandatory Requirements (see Section 10-113)

• Labeling Requirements.
  • Every roofing product installed in construction to take compliance credit or meet the prescriptive requirements for reflectance and emittance under Sections 140.1, 140.2, 140.3(a)1, 141.0(b)2B, 150.1(c)11, 150.2(b)1I or 150.2(b)2 shall have a clearly visible packaging label that lists the emittance and the initial and aged solar reflectance, or a CRRC Rapid Rating for solar reflectance, tested in accordance with CRRC-1. Packaging for liquid-applied roof coatings shall state the product meets the requirements specified in Section 110.8(i)4.
• Certification Requirements.
  • Every roofing product installed in construction to take compliance credit or meet the prescriptive requirements for reflectance and emittance under Sections 140.1, 140.2, 140.3(a)1, 141.0(b)2B, 150.1(c)11, 150.2(b)1I or 150.2(b)2 shall be rated by CRRC or another supervisory entity approved by the Commission pursuant to Section 10-113(c).

Commercial Buildings - New Construction (see Section 140.3)

• Nonresidential Buildings (see Section 140.3(a)1Ai)
• Guest Rooms of Hotel and Motel Buildings (see Section 140.3(a)1Aii)
• Relocatable Public School Buildings (see Section 140.3(a)8)

Commercial Buildings - Additions and Alterations (see Section 141.0)

Residential Buildings - Single Family New Construction (see Section 150.1(c)11)

Residential Buildings - Single Family Additions and Alterations (see Section 150.1(b))

Multifamily Buildings - New Construction (see Section 170.2)

Multifamily Buildings - Additions and Alterations (see Section 180)

AGENCY: City of Chula Vista

WEBSITE: https://chulavista.municipal.codes/CVMC/15.26

REQUIREMENTS:

Multifamily and Commercial Buildings (link to Code Section 15.26.050)

• For steep slope roofs, install a roofing product rated by the Cool Roof Rating Council (CRRC) with an aged solar reflectance of 0.25 or higher and thermal emittance of 0.75 or higher

For all other buildings and roof slopes, see California Building Energy Efficiency Standards (Title 24, Part 6)

AGENCY: City of Los Angeles Department of Building Safety

WEBSITE: https://www.ladbs.org/services/green-building-sustainability

REQUIREMENTS:

Nonresidential Buildings (link to Code Section 99.05.106.13)

• Low-sloped roofs (≤ 2:12) must have a minimum 3-year aged solar reflectance of 0.68, minimum initial or 3-year aged thermal emittance of 0.85, or minimum 3-year aged SRI of 82

• Steep-sloped roofs (> 2:12) must have a minimum 3-year aged solar reflectance of 0.28, minimum initial or 3-year aged thermal emittance of 0.85, or minimum 3-year aged SRI of 27

Residential Buildings (link to Code Section 99.04.106.5)

• Low-rise buildings with low-sloped roofs must have a minimum 3-year aged solar reflectance of 0.65, minimum initial or 3-year aged thermal emittance of 0.85, or minimum 3-year aged SRI of 78

• Low-rise buildings with steep-sloped roofs must have a minimum 3-year aged solar reflectance of 0.25, minimum initial or 3-year aged thermal emittance of 0.85, or minimum 3-year aged SRI of 20

• High-rise buildings with low-sloped roofs must have a minimum 3-year aged solar reflectance of 0.65, minimum initial or 3-year aged thermal emittance of 0.75, or minimum 3-year aged SRI of 78

• High-rise buildings with steep-sloped roofs must have a minimum 3-year aged solar reflectance of 0.25, minimum initial or 3-year aged thermal emittance of 0.75, or minimum 3-year aged SRI of 20

AGENCY: Los Angeles County Public Works

WEBSITE: https://pw.lacounty.gov/building-and-safety/general

REQUIREMENTS:

Nonresidential Buildings (link to Code Section 5.106.11.3)

• Low-sloped roofs (≤ 2:12) must have a minimum 3-year aged solar reflectance of 0.68, minimum initial or 3-year aged thermal emittance of 0.85, or minimum SRI of 82

• Steep-sloped roofs (> 2:12) must have a minimum 3-year aged solar reflectance of 0.28, minimum initial or 3-year aged thermal emittance of 0.85, or minimum SRI of 27

Residential Buildings (link to Code Section 4.106.6)

• Low-rise buildings with low-sloped roofs must have a minimum 3-year aged solar reflectance of 0.65, minimum initial or 3-year aged thermal emittance of 0.85, or minimum SRI of 78

• Low-rise buildings with steep-sloped roofs must have a minimum 3-year aged solar reflectance of 0.25, minimum initial or 3-year aged thermal emittance of 0.85, or minimum SRI of 20

• High-rise buildings with low-sloped roofs must have a minimum 3-year aged solar reflectance of 0.65, minimum initial or 3-year aged thermal emittance of 0.75, or minimum SRI of 78

• High-rise buildings with steep-sloped roofs must have a minimum 3-year aged solar reflectance of 0.25, minimum initial or 3-year aged thermal emittance of 0.75, or minimum SRI of 20

AGENCY: City of Toronto Department of Planning and Development

WEBSITE: https://www.toronto.ca/legdocs/bylaws/law-home/bylaw-inquiries-and-services.htm

REQUIREMENTS:

Industrial Buildings (see Article II, Section 492-2 C.2)

• In the case of an Industrial Building or a building addition to an Industrial Building, constructed after April 29, 2012, with a Gross Floor area of 2,000 square meters or greater, the provisions in Subsection A above shall not apply, but the building or addition shall include: [Amended 2011-02-08 by By-law 182-2011; amended 2011-12-01 by By-law 1381-2011]

  • A roof that uses Cool Roofing Materials [minimum SRI of 78] for 100% of the Available Roof Space

AGENCY: Denver Department of Community Planning and Development & office of Climate Action, Sustainability, and Resiliency

WEBSITE: https://www.denvergov.org/Government/Agencies-Departments-Offices/Agencies-Departments-Offices-Directory/Community-Planning-and-Development/Plan-Review-Permits-and-Inspections/Commercial-and-Multifamily-Projects/Green-Buildings-Ordinance

REQUIREMENTS:

New and Existing Buildings (see Section 3.03)

1. Roof covering materials shall contain a minimum solar reflectance in accordance with Table 1 for a new roof, roof replacement, or roof re-cover of new or existing buildings containing 25,000 square feet or greater of gross floor area. Roof covering materials shall meet at least one of the values identified in Table 1; materials do not have to meet all four values.

(b)(i) Where a roof recover or roof replacement project introduces a cool roof where none previously existed, the roof shall be demonstrated, or modified, to meet one of the following designs…(see Section 3.03(b)(i) for list)

See ordinance for exceptions

AGENCY: Manitou Springs Planning Department

WEBSITE: https://www.manitouspringsgov.com/227/_Planning-Department

REQUIREMENTS:

Commercial and Mixed-Use Buildings (see Code Section 18.03.2.5)

• Low-sloped (≤ 2:12) roofs must have a minimum initial SRI of 82 and minimum aged SRI of 64

• Steep-sloped (> 2:12) roofs must have a minimum initial SRI of 30 and minimum aged SRI of 32

Parking Structures (see Code Section 18.03.7.5)

• Covered parking spaces must have a minimum SRI of 29 or be placed beneath finished living space

AGENCY: Florida Building Commission

WEBSITE: https://floridabuilding.org/bc/bc_default.aspx

REQUIREMENTS:

Commercial Buildings (link to Code Section C402.3 of 2023 Florida Building Code)

• Low-sloped roofs directly above cooled conditioned spaces in Climate Zones 1, 2 and 3 shall comply with one or more of the options:

  • Minimum 3-year aged solar reflectance of 0.55 (0.63 for Climate Zone 1A) and minimum 3-year aged thermal emittance of 0.75, or

  • Minimum 3-year aged solar reflectance index of 64 (75 for Climate Zone 1A)

Residential Buildings (link to Code Section R401.2.1 of 2023 Florida Building Code)

• Residential buildings in the tropical zone at elevations below 2,400 feet (731.5 m) above sea level shall be deemed to comply with this chapter where the following conditions are met:

  • Low-sloped roofs must have a minimum aged solar reflectance of 0.55 (0.63 for Climate Zone 1A) and minimum aged thermal emittance of 0.75, or

  • Minimum aged solar reflectance index of 64 (75 for Climate Zone 1A), or

  • The roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

• Installation criteria for homes claiming the cool roof option (link to Code Section R405.7.2 of 2023 Code)

  • The cool roof option may be claimed where the roof to be installed has a tested solar reflectance of greater than 4 percent when evaluated in accordance with ASTM methods E-903, C-1549, E-1918 or CRRC Method #1. Emittance values provided by the roofing manufacturer in accordance with ASTM C1371 shall be used when available. In cases where the appropriate data are not known, emittance shall be the same as the Standard Reference Design. Testing of a qualifying sample of the roofing material shall be performed by an approved independent laboratory with these results provided by the manufacturer.

AGENCY: Miami-Dade County Department of Regulatory and Economic Resources

WEBSITE: https://www.miamidade.gov/global/economy/building/home.page

REQUIREMENTS:

Commercial Buildings (link to Code Section C402.3 of 2023 Florida Building Code)

• Low-sloped roofs directly above cooled conditioned spaces in Climate Zones 1, 2 and 3 shall comply with one or more of the options:

  • Minimum 3-year aged solar reflectance of 0.55 (0.63 for Climate Zone 1A) and minimum 3-year aged thermal emittance of 0.75, or

  • Minimum 3-year aged solar reflectance index of 64 (75 for Climate Zone 1A)

Residential Buildings (link to Code Section R401.2.1 of 2023 Florida Building Code)

• Residential buildings in the tropical zone at elevations below 2,400 feet (731.5 m) above sea level shall be deemed to comply with this chapter where the following conditions are met:

  • Low-sloped roofs must have a minimum aged solar reflectance of 0.55 (0.63 for Climate Zone 1A) and minimum aged thermal emittance of 0.75, or

  • Minimum aged solar reflectance index of 64 (75 for Climate Zone 1A), or

  • The roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

• Installation criteria for homes claiming the cool roof option (link to Code Section R405.7.2 of 2023 Code)

  • The cool roof option may be claimed where the roof to be installed has a tested solar reflectance of greater than 4 percent when evaluated in accordance with ASTM methods E-903, C-1549, E-1918 or CRRC Method #1. Emittance values provided by the roofing manufacturer in accordance with ASTM C1371 shall be used when available. In cases where the appropriate data are not known, emittance shall be the same as the Standard Reference Design. Testing of a qualifying sample of the roofing material shall be performed by an approved independent laboratory with these results provided by the manufacturer.

The City of Miami is guided by the Florida Building Code.

AGENCY: Miami Building Department

WEBSITE: https://www.miami.gov/My-Government/Departments/Building

REQUIREMENTS:

Commercial Buildings (link to Code Section C402.3 of 2023 Florida Building Code)

• Low-sloped roofs directly above cooled conditioned spaces in Climate Zones 1, 2 and 3 shall comply with one or more of the options:

  • Minimum 3-year aged solar reflectance of 0.55 (0.63 for Climate Zone 1A) and minimum 3-year aged thermal emittance of 0.75, or

  • Minimum 3-year aged solar reflectance index of 64 (75 for Climate Zone 1A)

Residential Buildings (link to Code Section R401.2.1 of 2023 Florida Building Code)

• Residential buildings in the tropical zone at elevations below 2,400 feet (731.5 m) above sea level shall be deemed to comply with this chapter where the following conditions are met:

  • Low-sloped roofs must have a minimum 3-year aged solar reflectance of 0.55 (0.63 for Climate Zone 1A) and minimum 3-year aged thermal emittance of 0.75, or

  • minimum 3-year aged solar reflectance index of 64 (75 for Climate Zone 1A), or

  • the roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

Installation criteria for homes claiming the cool roof option (link to Code Section R405.7.2 of 2023 Code)

• The cool roof option may be claimed where the roof to be installed has a tested solar reflectance of greater than 4 percent when evaluated in accordance with ASTM methods E-903, C-1549, E-1918 or CRRC Method #1. Emittance values provided by the roofing manufacturer in accordance with ASTM C1371 shall be used when available. In cases where the appropriate data are not known, emittance shall be the same as the Standard Reference Design. Testing of a qualifying sample of the roofing material shall be performed by an approved independent laboratory with these results provided by the manufacturer.

Miami Zoning Ordinance (link to Sec. 951 - Heat island effect)

• 951.4. Solar reflectance. All roof exterior surfaces shall have a minimum solar reflectance as specified in Sections 951.5 through 951.7 when (i) tested in accordance with ASTM E903 or ASTM E1918, (ii) tested with a portable reflectometer at near ambient conditions, (iii) labeled by the Cool Roof Rating Council, or (iv) labeled as an Energy Star qualified roof product. Any product that has been rated by the Cool Roof Rating Council or by Energy Star shall display a label verifying the rating of the product.

• 951.5. Requirements for low sloped roofs. Roofing materials used in roofs with slopes of a rise of zero (0) units in a horizontal length (0:12 pitch) up to and including roofs with slopes of a rise of two (2) units in a horizontal length of twelve (12) units (2:12 units) ("low-sloped") shall meet the following requirements:

  • Low-sloped roofs constructed as part of a new building shall utilize roofing products that meet or exceed an initial reflectance value of 0.72 or a three-year installed reflectance value of 0.5 as determined by the Cool Roof Rating Council or by Energy Star.

• 951.6. Requirements for steep sloped roofs. Roofing materials used in roofs with slopes of a rise greater than two (2) units in a horizontal length (2:12 pitch) ("steep-sloped") shall meet the following requirements:

  • Steep sloped roofs shall have an initial solar reflectance of 0.15 or greater.

AGENCY: Georgia Department of Community Affairs

WEBSITE: https://dca.georgia.gov/community-assistance/construction-codes

REQUIREMENTS:

Commercial Buildings (link to Code Section C402.3 of 2015 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum 3-year aged solar reflectance index (SRI) of 64

Residential Buildings

• R401.2 Compliance. Projects shall comply with all provisions of Chapter 4 labeled “Mandatory” and one of the following: 1. Sections R401 through R404. 2. Section R405. 3. Section R406. 4. The most recent version of REScheck, keyed to the 2015 IECC (see Section R401.2 of Code Amendments)

• Residential buildings in the tropical zone at elevations below 2,400 feet (731.5 m) above sea level shall be deemed to comply with this chapter where the following conditions are met (link to Code Section R401.2.1 of 2015 IECC):

  • Low-sloped roofs must have a minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

  • Minimum 3-year aged solar reflectance index of 64, or

  • The roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

Adopted 2015 IECC Amendments:
https://dca.georgia.gov/document/publications/iecc2020amendmentspdf/download

AGENCY: City of Atlanta Department of City Planning

WEBSITE: https://www.atlantaga.gov/government/departments/city-planning

REQUIREMENTS:

Commercial Buildings

(see Part III Land Development Ordinance - Part 16 Zoning, Chapter 26-18p, Sec. 16-18P.010 (Midtown District) and Section 16-18Q.010 (Piedmont Avenue District))

• All building and structural roofs shall be constructed of a heat-reflective material to achieve a minimum initial Solar SRI of 78 for a low-sloped roof (less than or equal to 2:12) and a minimum initial SRI of 29 for a steep-sloped roof (more than 2:12) except for those portions of roofing designated for vegetation.

Residential Buildings (see Part III Land Development Ordinance - Part 16 Zoning, Chapter 26-18p, Sec. 16-18P.010 (Midtown District) and Section 16-18Q.010 (Piedmont Avenue District))

• All building and structural roofs shall be constructed of a heat-reflective material to achieve a minimum initial Solar SRI of 78 for a low-sloped roof (less than or equal to 2:12) and a minimum initial SRI of 29 for a steep-sloped roof (more than 2:12) except for those portions of roofing designated for vegetation.

Roofs, Bridges and Tunnels (see Part III Land Development Ordinance - Part 16 Zoning, Chapter 26-18p, Sec. 16-18L.019 (Buckhead/Lenox Stations District)

Roof surface. A minimum of 75 percent of roof surface that covers floor area and is not used for roof penetrations or on-site renewable energy power systems shall achieve a minimum initial Solar SRI of 78 for a low-sloped roof (less than or equal to 2:12) and a minimum initial SRI of 29 for a steep-sloped roof (more than 2:12).

AGENCY: Hawaii State Energy Office

WEBSITE: https://energy.hawaii.gov/what-we-do/energy-efficiency/hawaii-energy-building-code-iecc-updates/

REQUIREMENTS:

Commercial Buildings (link to Code Section to C402.3 of 2021 IECC)

• Low-sloped roofs directly above cooled conditioned spaces in Climate Zones 0 through 3 shall comply with one or more of the options:

  • Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

  • Minimum 3-year aged solar reflectance index of 64

Residential Buildings (link to Section R407.2 in 2021 IECC)

• Low-sloped roofs must have a minimum aged solar reflectance of 0.55 and minimum aged thermal emittance of 0.75, or

  • minimum aged solar reflectance index of 64, or

  • the roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

AGENCY: City and County of Honolulu Department of Planning and Permitting

WEBSITE: https://www.honolulu.gov/dpp.h...

REQUIREMENTS:

Commercial Buildings (Roofs)

• Low-sloped roofs must have a minimum aged solar reflectance of 0.55 and minimum aged thermal emittance of 0.75, or minimum aged SRI of 0.64 (see Section C402.3)

• Roof replacement shall comply with Section C402.1.3, C402.1.4, C402.1.5 or C407 where the existing roof assembly is part of the building thermal envelope and contains insulation entirely above the roof deck. Replacement of uninsulated roofs shall include either initial reflectance ≥ 85% and aged reflectance ≥ 63% or at least one of the following:

  • EnergyStar compliant covering,

  • Radiant barrier, or

  • Attic ventilation via solar fan(s), ridge ventilation or gable vents

  • One or more exceptions in Section C402.3
    See Honolulu's amendments to 2018 IECC

City/County Checklists:

Low-Slope Roofs

Roof Replacements

Commercial Buildings (Exterior Walls)

• The minimum thermal resistance (R-value) of materials installed in the wall cavity between framing members and continuously on the walls shall be as specified in Table C402.1.3, based on framing type and construction materials used in the wall assembly.
  Exceptions: Continuous insulation for above grade walls and mass walls are not required when one of the following conditions are met:

  • Walls have a covering with a reflectance of ≥ 0.64; or

  • Walls have overhangs with a projection factor equal to or greater than 0.3. The projection factor is the horizontal distance from the surface of the wall to the farthest most point of the overhang divided by the vertical distance from the first-floor level to the bottom most point of the overhang.

  • Concrete, CMU and similar mass walls are 6 inches or greater in thickness
    See page 8 of Ordinance 23-25 (Bill 23-4)

Residential Buildings (Roofs)

• Buildings shall comply with the following requirements, except where a requirement is preempted by a variance…These measures shall be treated as mandatory, and no credit shall be taken for the measures in the compliance path selected for compliance with Section R401.2:
  • Roofs, based on slope, shall meet either an initial or three-year aged solar reflectance index (SRI) value in accordance with Table R401.3.1.4

    • Low-sloped roof ( ≤ 2:12): Initial SRI of 82 or 3-year aged SRI of 64

    • Steep-sloped roof (> 2:12): Initial SRI of 28 or 3-year aged SRI of 25
      See page 30 of Ordinance 23-25 (Bill 23-4)

City/County Checklists:

Alterations/roof Replacement

Points option (Tropical Code)

Roof – Large Homes

Residential Buildings (Exterior Walls)

• Buildings shall comply with the following requirements, except where a requirement is preempted by a variance…These measures shall be treated as mandatory, and no credit shall be taken for the measures in the compliance path selected for compliance with Section R401.2:

  • Exterior walls shall have a minimum area-weighted initial solar reflectance of 0.30 or a minimum insulation R-value of R-13
    See page 29 of Ordinance 23-25 (Bill 23-4)

AGENCY: Chicago Buildings Department

WEBSITE: https://www.chicago.gov/city/en/depts/bldgs/provdrs/bldg_code/svcs/chicago_buildingcodeonline.html

REQUIREMENTS:

Commercial Buildings (see Code Section C402.3 of Chicago Energy Transformation Code, which directs users to Code Section 1515.2 of Chicago Building Code)

• Low-sloped roofs must have a minimum initial solar reflectance of 0.72 and minimum three-year installed reflectance of 0.50

• Steep-sloped roofs must have a minimum initial solar reflectance of 0.15 or greater

Residential Buildings (see Code Section R607 of Energy Code, which refers users to Code Section 1515.2 of Chicago Building Code)

• Low-sloped roofs must have a minimum initial solar reflectance of 0.72 and minimum three-year installed reflectance of 0.50

• Steep-sloped roofs must have a minimum initial solar reflectance of 0.15 or greater

AGENCY: Boulder City Community Development Department

WEBSITE: https://www.bcnv.org/156/Commu...

REQUIREMENTS:

Commercial Buildings (link to Code Section C402.3 of 2018 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64

Residential Buildings (link to Code Section R401.2.1 of 2018 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64), or

• The roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

Building Code Adoption Notice: https://www.bcnv.org/DocumentCenter/View/8363/Building-Code-Adoption_August-27-2020?bidId=

AGENCY: Clark County Building Department

WEBSITE: https://www.clarkcountynv.gov/government/departments/building___fire_prevention/index.php

REQUIREMENTS:

Commercial Buildings (link to Code Section C402.3 of 2021 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64

Residential Buildings (link to Code Section R407.2 in 2021 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64), or

• The roof/ceiling has insulation with an R-value of R-15 or greater

Adopted 2021 IECC amendments: https://webfiles.clarkcountynv.gov//Building%20&%20Fire%20Prevention/Codes/2021%20IECC%20Ord%20signed.pdf

AGENCY: Henderson Department of Building and Safety

WEBSITE: https://www.cityofhenderson.com/government/departments/building-and-fire-safety/building-codes/international-energy-conservation-code

REQUIREMENTS:

Commercial Buildings (link to Code Section C402.3 of 2018 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64

Residential Buildings (link to Code Section R401.2.1 of 2018 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64), or

• The roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

AGENCY: City of Las Vegas Planning & Zoning and Building & Safety

WEBSITE: https://www.lasvegasnevada.gov/Business/Planning-Zoning/Building-Safety/Building-Safety-Resources

REQUIREMENTS:

Commercial Buildings (link to Code Section C402.3 of 2021 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64

Residential Buildings (link to Code Section R407.2 in 2021 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64), or

• The roof/ceiling has insulation with an R-value of R-15 or greater

Adopted 2018 IECC Amendments: https://www.cityofnorthlasvegas.com/home/showpublisheddocument/5357/638122342536730000

AGENCY: City of North Las Vegas Building Safety Division

WEBSITE: https://www.cityofnorthlasvegas.com/business/development-services/current-adopted-codes-and-ordinances

REQUIREMENTS:

Commercial Buildings (link to Code Section C402.3 of 2018 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64

Residential Buildings (link to Code Section R401.2.1 of 2018 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64), or

• The roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

AGENCY: New Mexico Energy, Minerals and Natural Resources Department

WEBSITE: https://www.emnrd.nm.gov/ecmd/energy-code-for-buildings/

REQUIREMENTS:

Commercial Buildings (link to Code Section C402.3 of 2018 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64

Residential Buildings (link to Code Section R401.2.1 of 2018 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64), or

• The roof/ceiling has insulation with an R-value of R-15 or greater

AGENCY: NYC Buildings

WEBSITE: https://www.nyc.gov/site/buildings/codes/nyc-code.page

REQUIREMENTS:

Commercial Buildings

• Low-sloped roofs must have a minimum initial solar reflectance of 0.70 and a minimum thermal emittance of 0.75, or

• A minimum SRI of 82 (link to Code Chapter 15, Section 1504.9)

Residential Buildings

• Low-sloped roofs must have a minimum initial solar reflectance of 0.70 and a minimum thermal emittance of 0.75, or

• A minimum SRI of 82 (link to Code Chapter 15, Section 1504.9)

AGENCY: Texas Department of Licensing and Regulation

WEBSITE: https://www.tdlr.texas.gov/ihb/codes.htm

REQUIREMENTS:

Commercial Buildings (link to Code Section C402.3 of 2021 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64

Residential Buildings (link to Code Section R407.2 in 2021 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum aged solar reflectance index (SRI) of 64), or

• The roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

AGENCY: Austin Development Services Department

WEBSITE: https://www.austintexas.gov/page/building-technical-codes

REQUIREMENTS:

Low-Rise Nonresidential Buildings (see Section 25-12-261, C402.3 of Article 12 - Energy Code)

• Low-sloped roofs ( ≤ 2:12) must have a minimum aged solar reflectance of 0.55 and minimum aged thermal emittance of 0.75, or minimum aged SRI of 64

• Steep-sloped roofs ( > 2:12) must have a minimum solar reflectance of 0.35 or a minimum initial SRI of 29

Low-Rise Residential Buildings (see Section 25-12-261, 5.4.4 of Article 12 - Energy Code)

• Low-sloped roofs must have a minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

  • Minimum aged SRI of 64), or

  • The roof/ceiling has insulation with an R-value of R-15 or greater

• Steep-sloped roofs must have a minimum solar reflectance of 0.35 or a minimum initial SRI of 29

AGENCY: Plan Review & Field Service Inspections

WEBSITE: https://dallascityhall.com/departments/sustainabledevelopment/buildinginspection/Pages/construction_codes.aspx

REQUIREMENTS:

Commercial Buildings (link to Code Section to C402.3 of 2021 IECC)

• Low-sloped roofs directly above cooled conditioned spaces in Climate Zones 0 through 3 shall comply with one or more of the options:

  • Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

  • Minimum 3-year aged solar reflectance index of 64

Residential Buildings (link to Section R407.2 in 2021 IECC)

• Low-sloped roofs must have a minimum aged solar reflectance of 0.55 and minimum aged thermal emittance of 0.75, or

  • Minimum aged solar reflectance index of 64, or

  • The roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

Adopted 2021 IECC Amendments: https://dallascityhall.com/departments/sustainabledevelopment/buildinginspection/DCH%20documents/pdf/code_amendments/2021_codes/23-0472.pdf

AGENCY: Houston Planning and Development Department

WEBSITE: https://www.houstontx.gov/codes/

REQUIREMENTS:

Commercial Buildings (link to Code Section to C402.3 of 2021 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum 3-year aged solar reflectance index (SRI) of 64

Residential Buildings (link to Section R407.2 in 2021 IECC)

• Minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

• Minimum 3-year aged solar reflectance index (SRI) of 64), or

• The roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

2021 IECC Amendments: https://www.houstonpermittingcenter.org/media/7466/download?inline

AGENCY: Department of Development Services

WEBSITE: https://www.sa.gov/Directory/Departments/DSD/Codes-Ordinances

REQUIREMENTS:

Commercial Buildings (see Section 10-92 Amendments in Ordinance 2022-11-10-0875)

• Low-sloped roofs ( ≤ 2:12) directly above cooled conditioned spaces in Climate Zones 0 through 3 shall comply with one or more of the options in Table C402.3 (link to 2021 IECC Section C402.3)

  • A minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or

  • A minimum 3-year aged SRI of 64, or

  • The roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

• Steep-sloped roofs ( > 2:12) directly above cooled conditioned spaces shall have a minimum reflectance of 0.35 or a minimum Solar Reflectance Index of 29

Residential Buildings ((see Section 10-92 Amendments in Ordinance 2022-11-10-0875 and link to Section R407.2 in 2021 IECC for reference to Section C402.3)

• Low-sloped roofs ( ≤ 2:12) directly above cooled conditioned spaces shall have a minimum 3-year aged solar reflectance of 0.55 and minimum 3-year aged thermal emittance of 0.75, or a minimum aged solar reflectance index of 64, or the roof/ceiling has insulation with an R-value of R-15 or greater (see code for further details)

• Steep-sloped roofs ( > 2:12) directly above cooled conditioned spaces shall have a minimum reflectance of 0.35 or a minimum Solar Reflectance Index of 29

Adopted 2021 IECC Amendments: https://docsonline.sanantonio.gov/DSDUploads/Ordinance2022-11-10-0875Chapter10.pdf