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Yes, Thermory USA LLC listing 8140-2135:0500 is listed by CAL FIRE for wildfire-area use.
The listing is for Thermory Standard Ash Cladding in OSFM category 8140, siding. Its scope is a nominal 1-by-6-inch tongue-and-groove profile for horizontal or vertical installation. CAL FIRE identifies SFM 12-7A-1 as the test protocol for this product. Those model, size, profile, and installation details define what the listing covers; the status should not be extended to other Thermory products or constructions.
The product appeared in the 2025 OSFM WUI Listed Products Handbook dated September 2, 2025. The live Building Materials Listing still showed it as listed on August 25, 2026; the stated expiration was June 30, 2027. Before specification, check the live record for listing 8140-2135:0500. Install the specified cladding according to the manufacturer’s instructions and product data sheets.
Documented attributes
Each value below points to its field-level manufacturer, official-listing, test-report, or standard-body evidence.