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Colorado CWRC prescriptive vent-mesh path

The 2025 Colorado Wildfire Resiliency Code provides a noncombustible corrosion-resistant mesh path with openings no larger than one-eighth inch for named ventilation openings.

This record covers documented mesh attributes only. Opening location, vent free area, installation, the separate ASTM E2886 path, mapped class, and local adoption remain checks.

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

Published requirement text

“corrosion-resistant mesh with openings not to exceed 1/8-inch”

2025 Colorado Wildfire Resiliency Code, Section 403.4.2 — 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

AttributeOperatorValueUnit
assemblyRole in foundation-vent–retrofit-mesh–soffit-vent
meshSizeInch lte 0.125 inch
corrosionResistant eq true
noncombustible eq true

Products with documented matching attributes

Open the Build rules that quote this requirement

ProductCategoryStatusDocumented match evidence
FireStorm EmberMesh roll vents Attribute match
4 cited fields
Wildfire Defense Mesh 75 black roll vents Attribute match
4 cited fields

Sources

Colorado CWRC prescriptive vent-mesh path. FireApproved. https://fireapproved.com/requirements/cwrc-2025-vent-mesh/. Last verified 2026-08-25.