Mod Bit

Composed of asphalt and reinforced with either polyester or fiberglass, modified bitumen roofs are a blend of traditional and modern roofing technologies. Two different polymers, Styrene Butadiene Styrene (SBS) or Atactic Polypropylene (APP), are used to modify the membrane and impart greater elasticity and temperature flexibility. Since polyester fiberglass fortifies the roof system, it exhibits more strength and resistance to punctures and is typically installed in various layers to provide a multi-tier protection system from water, extreme temperatures and wind uplift.

Modified Bitumen Roof Systems do differ in how they are installed on the roof based on the polymer sheet chosen. SBS, a polymer that gives bitumen characteristics similar to rubber, is typically installed with hot asphalt or cold adhesives. APP, a thermoplastic polymer, is almost always installed utilizing the torch method. CentiMark's team of professionals will assess your roof and suggest the best application approach for your facility.