United Asphalt manufactures various underlayments. United Glass Base Sheet is a fiberglass mat coated with Type IV asphalt. Glass Base Sheet is used as the base ply in hot, cold and torch applied built-up and modified bitumen roofing applications. Data Sheet United Ply 4 Felt is a fiberglass mat saturated with TYPE IV asphalt. Ply […]
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Nord Bitumi Modified Rolled Roofing Membrane Nord Bitumi was one of the first to introduced the APP technology into the US market, and has been a pioneer in APP & SBS modified rolled roofing membrane technology since 1967. Nord Bitumi offers a full line of APP & SBS products including Self-Adhered Membranes and Specialty Waterproofing […]
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United Asphalt offers four types of built-up roofing asphalt: Types I, II, III, and IV. All four types are made from high grade U.S. crude oil and meet or exceed ASTM D-312-15 specifications. All products are tested on a daily basis by our in-house lab and are available either in bulk form or cartons. Each carton […]
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