Built-up roof (BUR) membranes have been in use in the U.S. for more than 100 years.

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.


  • Fully adhered with hot bitumen or cold adhesive
  • Multiple plies
  • Smooth, flood, and gravel are available for surfacing