Oatey Plastic Roof Flashing is made of a non-fading, non-cracking, rigid black-. thermoplastic base for roof pitch 0-45 deg-. or up to a 12/12 roof. Self-sealing collar slides over pipe. Requires no caulking. Not for hot-mopped or built-up roofs. Rated 180 deg. continuous heat -type B approved. Apply no petroleum or paint product to flashing.