CertainTeed Roofing – Low – Slope
750 E. Swedesford Road
P.O. Box 860
Valley Forge, PA 19482
Tel: (800) 233-8990
Fax: (610) 341-7940
Email: building.solutions@saint-gobain.com
Web site: http://www.certainteed.com
Traditional built-up roofing (BUR) derives its name from the building
of a roof on-site using layers of base sheet, interply sheets, and cap
sheet or other surfacing such as gravel or liquid coating.
Hot asphalt (bitumen) is the bonding and waterproofing agent
between layers. The use of asphalt in waterproofing applications
dates back to ancient Egypt, making BUR the oldest and most time-proven
waterproofing method known.
BUR is suitable for most low slope roofing applications. The higher
the quality of the BUR materials and asphalt used and the greater
the number of plies (and separate asphalt moppings), the more
superior the roof system.
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