1. Cut to pipe diameter marked on Flashers (this is approximately 20% smaller than the diameter of the pipe).
2. Slide the Flashers down the pipe, using water to lubricate if necessary
3. Form and bend the aluminum base of the Flashers to fit the surface of the roof.
4. Seal the Flashers by applying urethane / silicone sealant between the Flasher and the roof. Use a large slot screw-driver to press the base down tightly.
5. Fasten the Flashers with weather-resistant fasteners to complete the seal.
