{"id":"cwrc-2025-roof-valley-flashing","license":"CC-BY-4.0","data":{"title":"Colorado CWRC roof-valley flashing metal path","shortName":"Colorado CWRC valley flashing","summary":"The 2025 Colorado Wildfire Resiliency Code specifies No. 26 galvanized corrosion-resistant metal valley flashing over a full-width ASTM D3909 cap-sheet detail.","framing":"A flashing product can document the metal portion only. The 36-inch cap sheet, full-valley installation, compatibility, and locally adopted text remain separate checks.","kind":"code","instrumentId":"cwrc-2025","jurisdiction":"Colorado jurisdictions adopting CWRC in mapped wildfire hazard areas","placeIds":["us-co"],"appliesToCategories":["roofing"],"quotedText":"not less than 0.019 inch (No. 26 galvanized sheet gage) corrosion-resistant metal","source":{"title":"2025 Colorado Wildfire Resiliency Code, Section 403.2.2","url":"https://dfpc.colorado.gov/colorado-wildfire-resiliency-code","publisher":"Colorado Division of Fire Prevention and Control","sourceType":"official","accessedOn":"2026-08-25T00:00:00.000Z","documentDate":"2025-07-01T00:00:00.000Z"},"constraints":[{"attribute":"assemblyRole","op":"eq","value":"valley-flashing"},{"attribute":"sheetGauge","op":"lte","value":26,"unit":"sheet-gauge"},{"attribute":"corrosionResistant","op":"eq","value":true},{"attribute":"material","op":"in","value":["galvanized-steel"]}],"author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-25T00:00:00.000Z"},"applications":[{"id":"cwrc-2025-colorado","title":"Colorado 2025 CWRC local-adoption path","instrumentId":"cwrc-2025","placeId":"us-co","status":"available-for-local-adoption","geographicScope":"mapped-area","scopeSummary":"Colorado has published the 2025 Wildfire Resiliency Code for adoption by named jurisdictions; the local ordinance, official hazard map, and project class determine whether a requirement reaches a project.","requirementIds":["cwrc-2025-class-2-20-minute-exterior-door","cwrc-2025-class-2-class-a-deck-surface","cwrc-2025-class-2-multilayered-glazing","cwrc-2025-class-2-noncombustible-deck-structure","cwrc-2025-class-2-noncombustible-deck-surface","cwrc-2025-class-2-noncombustible-eave","cwrc-2025-class-2-noncombustible-exterior-door","cwrc-2025-class-2-noncombustible-exterior-wall","cwrc-2025-class-2-solid-core-exterior-door","cwrc-2025-class-2-wall-base-protection","cwrc-2025-class-a-roof-assembly","cwrc-2025-immediate-zone-hardscape","cwrc-2025-near-structure-fence","cwrc-2025-noncombustible-gutters","cwrc-2025-roof-profile-closure","cwrc-2025-roof-valley-flashing","cwrc-2025-vent-mesh"],"requirementCoverage":"partial","unresolvedPredicates":["local-adoption","official-hazard-map","project-type","official-confirmation"],"source":{"title":"2025 Colorado Wildfire Resiliency Code","url":"https://dfpc.colorado.gov/colorado-wildfire-resiliency-code","publisher":"Colorado Division of Fire Prevention and Control","sourceType":"official","accessedOn":"2026-08-24T00:00:00.000Z","documentDate":"2025-07-01T00:00:00.000Z"},"author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-25T00:00:00.000Z"}],"products":[{"id":"westlake-royal-ribbed-valley-metal","name":"Westlake Royal ribbed valley metal","url":"/materials/westlake-royal-ribbed-valley-metal/","categories":["roofing"],"complianceStatus":"attribute-match","documentedAttributes":[{"attribute":"assemblyRole","value":"valley-flashing","source":{"title":"Ribbed valley metal","url":"https://www.westlakeroyalbuildingproducts.com/roofing/westlake-royal-roofing-components/ribbed-valley-metal","publisher":"Westlake Royal Roofing LLC","accessedOn":"2026-08-24T00:00:00.000Z","sourceType":"manufacturer"},"documentLocation":null,"excerpt":null},{"attribute":"material","value":"galvanized-steel","source":{"title":"Ribbed valley metal","url":"https://www.westlakeroyalbuildingproducts.com/roofing/westlake-royal-roofing-components/ribbed-valley-metal","publisher":"Westlake Royal Roofing LLC","accessedOn":"2026-08-24T00:00:00.000Z","sourceType":"manufacturer"},"documentLocation":null,"excerpt":null},{"attribute":"sheetGauge","value":26,"source":{"title":"Ribbed valley metal","url":"https://www.westlakeroyalbuildingproducts.com/roofing/westlake-royal-roofing-components/ribbed-valley-metal","publisher":"Westlake Royal Roofing LLC","accessedOn":"2026-08-24T00:00:00.000Z","sourceType":"manufacturer"},"documentLocation":null,"excerpt":null},{"attribute":"corrosionResistant","value":true,"source":{"title":"Ribbed valley metal","url":"https://www.westlakeroyalbuildingproducts.com/roofing/westlake-royal-roofing-components/ribbed-valley-metal","publisher":"Westlake Royal Roofing LLC","accessedOn":"2026-08-24T00:00:00.000Z","sourceType":"manufacturer"},"documentLocation":null,"excerpt":null}]}],"matchContract":"Products appear only when their cited fields satisfy this requirement's normalized constraints. Application scope and unresolved predicates remain separate; an attribute match is not a permit decision."}