Oatey® invented the flashing industry more than 100 years ago. Today Oatey Flashings are used in commercial and residential applications where a water-tight seal around plumbing vent pipe or outside wall penetrations is required. Oatey Standard Roof Flashings are engineered to accommodate a broad range of pipe diameters. Made of galvanized material, its self-sealing collar slides over a pipe and requires no caulking.