Roof flashing is a thin sheet of metal, usually made from materials like aluminum, copper, or galvanized steel, installed at intersections or breaks in a roof, such as around chimneys, vents, or skylights. In plumbing, roof flashing is used to seal and protect pipes that pass through the roof, preventing water from seeping into the structure. It directs rainwater away from the joints, reducing the risk of leaks and water damage. Proper installation of roof flashing, including sealing and overlapping with roofing materials, is essential to maintain the integrity of the roof and prevent leaks around plumbing penetrations.
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