Steps

Identify the applicable energy code (IECC edition, ASHRAE 90.1, or California Title 24 Part 6 for CA projects) and the building's climate zone to determine the required minimum aged solar reflectance and thermal emittance for low-slope roofs
Search the CRRC Rated Products Directory at coolroofs.org/directory by manufacturer and product name to confirm the specified membrane/coating has a current CRRC rating
Confirm the CRRC-listed value used for compliance is the 3-year AGED reflectance/emittance value (not the initial/as-installed value), since IECC and ASHRAE 90.1 reference aged values
For California projects, cross-check the current Title 24 Part 6 cool roof requirement table (published by CRRC) against the project's climate zone, since requirements were tightened effective January 1, 2026 (aged reflectance 0.63 / SRI 75 for the updated cycle)
Retain the CRRC Product ID/label documentation in the project closeout package as code-compliance evidence

Known gotchas

Aged (3-year weathered) values, not initial reflectance values, govern code compliance — a high initial reflectance number on a spec sheet can be misleadingly favorable if the aged value is what the code requires
California Title 24 cool roof requirements changed for the cycle effective January 1, 2026 — confirm which code cycle applies to the specific permit date rather than assuming prior-cycle numbers still apply
A product not listed in the CRRC directory cannot be used to demonstrate code compliance even if its manufacturer publishes reflectance claims independently

Look up prescriptive insulation R-value and fenestration U-factor requirements by climate zone in the locally adopted IECC

codes.iccsafe.org · 5 steps · unrated

Evaluate continuous insulation and thermal-bridging design to support energy-code compliance and condensation-risk review during BECx design review

iso.org · 6 steps · unrated

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Confirm cool-roof code compliance (IECC/Title 24) using the CRRC Rated Products Directory

Steps

Known gotchas

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