United Asphalts produces 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 provides safety information – the Flash Point, proper EVT, and Type. Listed in the following charts are the ASTM D-312-15 specifications for Types I, II, III, and IV roofing asphalt, as well as waterproofing asphalt.
For product data sheets and safety information please click the links below: