A layer of gravel, or small stones, is applied on top of the final coating of asphalt to protect the roof from the elements, including ultraviolet (UV) rays and hail.
Rubber roofing tiles and more, Safe for rubber roof membrane surfaces . Compared to asphalt and gravel roofing, roofing membrane has proven itself to be an.
Modified bitumen (MB) is another excellent roofing alternative, used regularly on . a long-lasting and safe roofing material for single and multi-family dwellings.
In roofing, higher insulation values and less stable . roofing materials were not designed to perform . the performance of other SBS-modified bitumen.
May 10, 2017 . Introduction. The Asphalt Roofing Manufacturers Association (ARMA) recommends that the structural roof deck meet certain minimum.
Modified Bitumen roof systems can be installed by heat-welding, hot- asphalt, and . Modified bitumen is asphalt treated to become safer in application and more.