J. Wilhelm Roofing Company, Inc.

Over 90 Years Servicing South Jersey

Photovaltaic Solar Construction

Asphalt / Modified Bitumen Systems

Roof Construction

All About Asphalt & Modified Bitumen

Metal Roofing Asphalt, a petroleum by-product, is the major component of this system. The major advantages to an asphalt roof are that it's cost effective and extremely durable when properly applied. Our certified technicians are well trained within the asphalt/ modified bitumen applications with acute attention to details.

Modified Bitumen (MB) gives designers and installers an even broader array of options than Built-up-Roof (BUR). MB may be installed by the torch-application method, or "hot-mopped" like BUR, or applied with "cold-process" adhesives. The latest innovation with MB is the self-adhering sheet. Using special combinations of polymers to modify the underside of the MB sheet, the rolls are manufactured with a release paper.

The installer removes the release paper and as the sheet is rolled out, it adheres itself to the substrate. This method eliminates the risks associated with the use of torches, hot asphalt, and is completely free of VOC (volatile organic chemicals) fumes during and after application.


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Tel: 856-691-6161
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J. Wilhelm Roofing

2013 J. Wilhelm Roofing Company, Inc.                                             1960 S.West Boulevard, Vineland, NJ 08360