Modified Bitumen Roofing
Multi-layer protection with proven performance. Ideal for buildings that need to withstand heavy foot traffic and extreme weather.
About Modified Bitumen
Modified bitumen combines the proven performance of built-up roofing with advanced polymer technology. It consists of multiple reinforced layers that create a robust waterproof membrane ideal for flat and low-slope commercial roofs.
The two main types—APP (Atactic Polypropylene) and SBS (Styrene-Butadiene-Styrene)—offer different advantages. APP provides superior UV resistance and high-temperature performance, while SBS offers excellent flexibility in cold weather and superior elongation properties.
We select the optimal installation method based on your building's requirements: torch-applied for maximum adhesion, cold-applied for occupied buildings where open flames are restricted, or self-adhered for fastest installation.
Why Choose Modified Bitumen
- Multi-layer protection—redundant waterproofing even if one layer is damaged
- Extreme weather resistance—handles Midwest temperature swings
- Heavy foot traffic tolerance—ideal for roofs with HVAC equipment
- Proven track record—based on 100+ years of BUR technology
- Easy repairs—damage can be patched without full replacement
- 15-20 year lifespan with proper maintenance