Shingle Flashings are designed to effectively seal round pipe penetrations, from 1.25" through 4", penetrating shingle roofing systems at up to 40° slopes. The seal is an elastomeric collar integrally locked into a rigid base which remains flat on the roof. Bases are available in 24 gauge galvanized steel, .032 mill finish aluminum. Pipes can be all types, including copper, cast iron, plastic, aluminum, and galvanized. Shingle flashings are rated to 180°F continuous heat. All are listed by UPC, SBC, and BOCA.