A: Tar-and-gravel roofing is the generic name for a built-up roofing system used on low-slope roofs. Roofs with a rise of 3 inches for every 12 inches of run or less are candidates for a built-up ...

After extensive repairs to a leaking roof assembly, it was determined in 2007 that the 170,000 sq. ft. built-up roof system had suffered significant water damage and a new roof system was needed. The ...

The largest segment of the flat roof market is Built Up Roof, BUR, systems which are often comprised of two to four layers of bitumen impregnated fiber sheets, think tarpaper, “mopped” into a ...