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Colorado CWRC roof-profile flame and ember closure path

The 2025 Colorado Wildfire Resiliency Code requires roof-profile spaces to resist flame and ember entry using noncombustible firestopping, ASTM D3909 cap sheet, or a listed Class A assembly.

A closure product addresses only the profile space. The selected code path, deck, cap sheet, listed assembly, fastening, geometry, and local ordinance remain separate checks.

code · Colorado jurisdictions adopting CWRC in mapped wildfire hazard areas · Last verified 2026-08-25 · JSON (CC BY 4.0)

Published requirement text

“Firestopping with noncombustible material of the space between the roof covering and the roof deck.”

2025 Colorado Wildfire Resiliency Code, Section 403.2.1 — Colorado Division of Fire Prevention and Control

Where this instrument is documented

Instrument cwrc-2025.

Set a location to read how this instrument lands where you are.

PlaceForceReachDatedChecks openSource
Colorado published for local adoption; not active statewide mapped area not sourced 4 2025 Colorado Wildfire Resiliency Code

Each place page carries that place's boundary, project scope and open official checks in full; this page's JSON twin carries them per application.

Machine-readable constraints

AttributeOperatorValue
assemblyRole eq roof-profile-closure

Products with documented matching attributes

Open the Build rules that quote this requirement

Sources

Colorado CWRC roof-profile flame and ember closure path. FireApproved. https://fireapproved.com/requirements/cwrc-2025-roof-profile-closure/. Last verified 2026-08-25.