United States / Build / TruExterior Trim

TruExterior Trim

This is a listed eave assembly. Listing 8160-2134:0101. This site cites SFM 12-7A-3. Match the model and orientation.

Kind: listed-assembly. Brand: Westlake Royal Building Products — TruExterior. Listing evidence: OSFM WUI handbook 2026-08-25. Page reviewed 2026-08-23. JSON (CC BY 4.0)

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Can you use it here?

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Yes, TruExterior Trim is listed for use beneath horizontal projections in California wildfire-area construction.

Under BML 8160-2134:0101, TruExterior Trim appears in CAL FIRE OSFM’s eaves category. The approved scope covers actual dimensions from 5/8 to 1-1/2 inches thick and from 1-1/2 to 15-1/2 inches wide. The identified test protocol is SFM 12-7A-3.

This is a listing for a specific assembly and application, not blanket approval for every use of TruExterior Trim. Its listed status was current on August 25, 2026, and the listing expires June 30, 2027. Before specifying it, confirm that the listing remains active and that the exact model, dimensions, and installation location match BML 8160-2134:0101.

Documented attributes

Each value below points to its field-level manufacturer, official-listing, test-report, or standard-body evidence.

AttributeValueEvidence source
Fire
Test standard sfm 12 7a 3 OSFM Building Materials Listing — 8160-2134:0101 (official-listing · Listing 8160-2134:0101, TEST PROTOCOL)TEST PROTOCOL: SFM 12-7A-3

Published requirement matches

These links are generated from the cited attributes above. They do not decide installation or a project result.

ProgramID / sourceEvidence dateExpiresStatus
CAL FIRE BML 8160-2134:0101 · Search BML for 8160-2134:0101 2026-08-25 2027-06-30 listed

Tests and programs cited

Specification notes

Sources

TruExterior Trim. FireApproved. https://fireapproved.com/materials/boral-composites-inc-boral-truexterior-trim-5-8-to-1-1-2-thick-and/. Last verified 2026-08-23.