Bitumen Roof . The modified bitumen membrane sheeting is the main element of the roofing system and it is made from an infusion of polyester fiberglass or a combination of both. Modified bitumen roofing uses polymer-modified bitumen reinforced by several layers of glass fiber or polyester fabric or a combination of the two.
Modified bitumen roofing is primarily used on flat or low-slope commercial roofs. Bitumen has been used roofing for many years. Modified bitumen roofing can be installed conventionally or can be self-adhered.
Many contractors in the United States have used BUR Systems for decades because of its overall reliability and efficiency in protecting a buildings interiorThe system has alternating bitumen-coated membranes and oxidized bitumen usually called felt or ply sheets.
History of Modified Bitumen. What is a Built-Up Roofing BUR. Rolled bituminous materials absorb water quite well and cannot guarantee completely watertight seals. Modified bitumen roof is a roofing asphalt.
