Oatey® invented the flashing industry more than 100 years ago. Today Oatey Roof Flashings are used in commercial and residential applications where a water-tight seal around plumbing vent pipe or outside wall penetrations is required. Oatey Multi-Size Roof Flashings feature a Patented All-Flash® design that allows use on multiple pipe sizes. Made of aluminum, copper, galvanized, or thermoplastic materials, its self-sealing collar slides over pipe and requires no caulking.