Built up Roof (BUR),tar, or tar & gravel roofs consist of several layers of asphalt felt that are sandwiched between hot tar, pitch, or asphalt and topped with a thick coat of the hot medium. They are usually finished with gravel, mineral cap sheets, or coatings on top for extra protection from the sun and elements. Because of the multiple layer construction, BURs are very resistant to mechanical or storm damage. Meis Roofing also offers Cold-process BUR capabilities.
Firestone offers Ply IV (4) M and Ply VI (6) M asphalt impregnated, glass fiber mat reinforced roofing felts that can installed in multiple layers with a flood coat and aggregate or used in combination with Modified Bitumen.
The Ply IV (4) M and Ply VI (6) M felts provide superior durability and ease of application to construct Firestone Built-Up Roofing (BUR) Systems.