For use on virtually all roofs, RoofSeal/OneStep features a UV stable backing that is available in Black, Gray, Tan and White. With the exception of surface prep, RoofSeal/OneStep is a one-step permanent repair system for virtually all roof types, and roof accessories. RoofSeal/OneStep creates a waterproof, moisture, and air tight barrier with no additional sealing required. RoofSeal/OneStep remains flexible to temperatures as low as -70 Degree Fahrenheit making it virtually impossible to thermally shock the seam causing a leak. RoofSeal/OneStep bonds to a wide range of surfaces including difficult roof materials such as EPDM, TPO, most PVC, CSPE/Hypalon, CPE, SBS, APP modifieds, asphalt BURs, coal tar BURs, all metal roofs, tiles, shingle, aluminum, galvanized steel, gypsum board, wood, polyethylene, propylene, polystyrene, fiberglass, brick, concrete, masonry, OSB, etc.