Built Up & Modified Roofing

Products & Services

built up and modified roofing project

Built Up Roofing

Built up roofing is a multi-ply roofing system for low-slope applications, consisting of alternating layers of reinforced fabric installed with asphalt or tar. The top ply consists of stone or gravel, adding additional protection against UV rays, extreme temperature changes, and storm damage

Modified Bitumen (MB)

Modified Bitumen roofing is another system designed and installed solely on low-slope roof structures. Similar to built up, modified system plies can be hot applied, cold applied, or even self-adhered. It’s a low maintenance, weather, and temperature resistance system that is easy to repair while still offering a lengthy warranty.


before picture of roof being torn apart
flat roofing on the sloan physics lab