Modified Roofing

Polyglass is a leading manufacturer of modified bitumen roofing and waterproofing membranes and roof coatings for low- and steep-slope applications. Polyglass utilizes the most technologically advanced manufacturing processes in the industry with four state-of-the-art manufacturing facilities, three in the U.S.

GAF modified roofing solution offers flexibility, impact resistance and strength and can be applied by torch, hot-mopping or cold-applied adhesives.

Johns Manville provides the most complete product offering in the commercial roofing industry, supported by many service groups that will be there for you every step of the way. Take a look at Johns Manville for your next commercial roofing project.