Modified Bitumen

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Benefits of Modified Bitumen Roofing

Modified Bitumen or (Mod Bit) sheets are constructed primarily of polymer modified bitumen reinforced with one or more plies of fabric such as polyester, glass fiber or a combination. Assembled in factories using high quality control standards, modified bitumen sheets are made to have uniform thickness and are manufactured to have consistent physical properties throughout the entire sheet. The finished roofing membrane might consist of one or more modified bitumen sheets, or may be comprised of a combination of built-up roofing (BUR) felts and one or more modified bitumen sheets. The type of substrate and the performance objectives determine the specification of the modified bitumen membrane system.

Benefits of App Modified Bitumen

APP is a thermoplastic polymer that forms a uniform matrix inside the bitumen. This matrix increases the bitumen’s natural resistance to ultra-violet light, increases its flexibility at high and low temperatures, and increases its ability to resist water penetration.

Benefits of SBS Modified Bitumen

SBS-modified bitumen membranes withstand water penetration while exhibiting superior elongation and recovery properties over a wide range of extreme temperatures. This high-performance benefit makes them exceptionally durable and particularly applicable where there may be movement or deflection of the underlying deck.