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Built Up Roof System

Built Up Roof System

Built-up roof (BUR) membranes have been in use for more than a century. They are also known as “tar and gravel” roofing system. Typically, in Built-Up roofing systems, asphalt or bitumen is applied between layers of roofing felts. Roofing felts are reinforced with organic or glass-fiber mats and are usually about 3 feet wide. Generally, coal tar, asphalt or cold applied adhesive are used as bitumen.

The cold adhesive is a solvent based asphalt and does not need to be heated to apply.

These multiple layers provide a very high resistance to water and extreme weather conditions such as wind, snow and hail.

Benefits of Built-Up roof systems:

  • Multiple roofing layers offer great protection.
  • Their strong traffic durability, speed of application and ease of repair make these systems highly cost effective.
  • Gravel application on a Built-Up roofing system serves to protect the membrane from ultraviolet rays and acts as a ballast to support the roof.


Our expertise in built-up roofing systems renders us the confidence to undertake even the most challenging roofing repairs and maintenance services. Try our services to experience exemplary customer service.