Flashing—no matter if it’s with a window, roof, or chimney—is made to be set up in a very layered sequence, much like the way in which shingles are layered on the roof. Just about every successive layer overlaps the layer below to direct the movement of h2o down and away. https://emergency-roof-repair-aft15803.blogs100.com/22523162/the-roofing-for-commercial-warehouses-diaries