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The technical product data sheet covers the 251 Vista laminated architectural shingle from Malarkey Roofing Products. The two-page PDF is marked effective 02/26, which is February 2026, and states that it supersedes all previously published data. Page 1 describes the product use, composition and materials, application, precautions, warranty packages and technical details. Page 2 repeats the technical assistance block and gives the solar reflectance test data.
The technical details table lists a width of 13¼ inches, a length of 38 7/8 inches, a 5 5/8-inch exposure, 66 shingles per square packed three bundles to the square, and 16 squares per pallet. Granule adhesion is given as 0.35 g in typical results. The listed test compliance covers ASTM D7158 Class H, ASTM D3462, ASTM D3161 Class F, ASTM D3018 Type I, ASTM E108 Class A fire rating, UL 2218 Class 4, CSA A123.5, ICC-ES ESR-3150, ICC-ES AC438 and FBC approval #14809.
The page 2 table reports initial and weathered solar reflectance, thermal emittance and solar reflective index for the Sienna Blend and Silverwood colors, which the sheet says are listed with the Cool Roof Rating Council.
Material changes / notes
Official source checked September 19, 2026. Confirm the applicable revision and complete assembly requirements before use.