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CEDAR VALLEY MANUFACTURING

This is a listed siding assembly. Listing 8140-2023:0002. This site cites cal-fire-bml. Match the model and orientation. A listing is not a permit.

Cedar Valley “California Stack” 1-Course Cedar Shingle Siding Panel, 4-1/4” or greater exposure, Western Red Cedar vertical-grain heartwood shingle applied over fiberglass matte to a square cut plywood backer, installed over oriented strand board (OSB) with a 7/16” minimum thickness. Refer to the manufacturer's installation instructions and product data sheets.

Kind: listed-assembly. Brand: CEDAR VALLEY MANUFACTURING. Listing evidence: OSFM WUI handbook 2026-08-25. Page reviewed 2026-08-23. JSON (CC BY 4.0)

ProgramID / sourceEvidence dateExpiresStatus
CAL FIRE BML 8140-2023:0002 · Search BML for 8140-2023:0002 2026-08-25 2027-06-30 listed

Tests and programs cited

Sources

CEDAR VALLEY MANUFACTURING. FireApproved. https://fireapproved.com/materials/cedar-valley-manufacturing/. Last verified 2026-08-23.