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Yes, Resysta Platinum Fiber Reinforced Hybrid Decking is listed by CAL FIRE for use as WUI decking.
CAL FIRE OSFM listing 8110-2323:0501 covers a specific assembly: Resysta boards 1 inch thick and 5-1/2 inches wide over nominal 2 × 6-inch Douglas-fir joists spaced 16 inches on center. The live listing dated August 25, 2026, expires June 30, 2027.
Fastening is part of that assembly. The starting board is face-fastened through its groove at 45 degrees to each joist with a #7 × 1-5/8-inch stainless steel screw. The ending board is secured through its groove at the same angle with the same screw at each joist. Every other board uses one Resysta Plastic Deck Fastener at each framing member, secured with the specified stainless steel screw.
The decking is listed under SFM 12-7A-4A; ASTM E84 was not conducted. The listing also requires the attached exterior wall covering to be noncombustible or ignition-resistant. Before specifying the decking, confirm the live CAL FIRE record and exact model, since the listed status applies to this defined combination of board dimensions, framing, fasteners, and wall covering.
Documents for this product
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Listing is from the OSFM WUI handbook. Confirm the live GOVmotus record and the exact model before specification.
In the Resysta handbook listing, the starting board is face-fastened through its groove at 45° to each joist with a #7 × 1-5/8-inch stainless steel screw. The ending board is secured through its groove at 45° to each joist with one screw of that same size and material.
For all other boards in Resysta listing 8110-2323:0501, each framing member uses one Resysta Plastic Deck Fastener secured with a #7 × 1-5/8-inch stainless steel screw.
Resysta listing 8110-2323:0501 states that ASTM E84 was not conducted and requires the attached exterior wall covering to be noncombustible or ignition-resistant material.