Built Up Roofing Systems

Built up roof membranes, referred to by the acronym BUR, have been in use in the U.S. for more than 100 years.

BUR systems generally are composed of alternating layers of bitumen and reinforcing fabrics that create a finished membrane. The number of plies in a cross section is the number of plies on a roof: The term “four plies” denotes a four ply roof membrane construction. Sometimes, a base sheet, used as the bottommost ply, is mechanically fastened. Built up roofs generally are considered to be fully adhered if applied directly to roof decks or insulation.

The roofing membrane is built up by alternating layers of asphalt or coal tar saturated felts or fiberglass mat roofing plies. The built-up roof components are: insulation board, base sheet, hot- or cold-applied felts, surfacing materials and flashing materials. These systems can be durable and long lasting when carefully installed in multiple layers with quality bitumen, felts and flashings.

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Pappas Roofing & Construction, Roofing Contractors, Plano, TX

Contact Information

801 Avenue K #16
Plano, TX 75074

Phone: (972) 547-6631

Fax: (844) 547-6634

Email: info@pappasroofing.biz

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