Products / DuraFlex 250FR SBS

U.S. Ply's fire-resistant, granule-surfaced SBS (Styrene-Butadiene-Styrene) modified bitumen cap sheet reinforced with a heavy-duty non-woven polyester mat, applied with hot asphalt or cold adhesive. The data sheet lists a 3.8 mm (150 mil) thickness, 39-3/8 in x 32 ft 9 in rolls of about one square, and classification under ASTM D6164. It states the product is UL Classified, FM Approved, and listed under Florida Building Code FL-8077 and Texas Department of Insurance RC-123. An Ultra White granule version has its own data sheet, which lists an initial solar reflectance of 0.84 and an initial SRI of 106.