What Is a Built-Up Roof?

A built-up roof is a multi-layered roofing system designed for flat or low-slope roofs. Unlike pitched roofs, where shingles or tiles allow water to slide off, flat roofs require a watertight barrier to prevent leaks. The BUR system achieves this with multiple layers of bitumen (asphalt or coal tar) and reinforcing fabrics that work together…

Read More