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Cool roof and fire-zone roofing rules in California cities

Source: California Roofing Help (californiaroofinghelp.com), part of the Local Help Stations network (localhelpstations.com). Last updated November 2, 2026.

Los Angeles requires Class A roof covering within a Very High Fire Hazard Severity Zone, and a Cool Roof Rating Council labeled product when a residential roof replacement covers more than 50 percent of the total roof area. (source: City of Los Angeles Department of Building and Safety)

San Diego requires Class A roof assemblies for all newly constructed roofs, for additions over 25 percent of original floor area, for all replacements, alterations or repairs, and for the entire roof when more than 25 percent of roof area is replaced within twelve months. Renewals in a Very High Fire Hazard Severity Zone must also meet wildland-urban interface fire protection rules for buildings originally constructed on or after August 27, 2009. (source: City of San Diego Development Services)

San Francisco asks about cool roof compliance for commercial buildings replacing more than half of the roof area or 2,000 square feet. (source: City and County of San Francisco)

On this site: Do I need a permit to replace a roof in California? · When does a California roofer need a C-39 license? · Hiring a roofer after a California wildfire or declared disaster · California roof insurance claim deadlines · California roofing contract and payment rules · How to check a California roofer and complain · Can I reroof my own house in California? · Roofing permit costs in California cities · Cool roof and fire-zone roofing rules in California cities · Where to complain about a California roofer · Cities · FAQ · Sources

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