Built Up Roofing

What are Built-up Roofs?

These roofs have been the traditional approach to flat commercial or industrial roofing in North America for the last 150 years. Multiple layers of felt or glass plies with inter ply mopping of asphalt are assembled in the field to "build up" a finished roof assembly. A heavy application of asphalt which is then covered with gravel is the typical finishing surface to these assemblies, primarily for protection purposes. These roof assemblies have a good life expectancy, normally in the range of 20 to 25 years.

In the past 30 years a number of different roofing systems have come and most have gone. Although there are many other choices available today, BUR is still arguably the best roofing system for commercial / industrial needs. BUR is the most durable roofing system available. A new BUR roof is essentially bullet proof and has stood the test of time and is still # 1.