These roof systems are commonly referred to as "tar and gravel" roofs. BUR systems generally are composed of alternating layers of bitumen and reinforcing fabrics that create a finished membrane. We have improved on that system over the years including our most recent product additions called PolaraLUM or our new Polastic finishes. The number of plies in a cross section is the number of plies on a roof: The term "three plies" denotes a three ply roof membrane construction. Sometimes, a base sheet, used as the bottommost ply, is mechanically fastened.
Your business is important to us and that's why we work to ensure your roofing repair is completed quickly and correctly the first time. You can call us for a free estimate at (800)-767-7663.