Bitumen Asphalt Flat Roof

Development modified bitumen was developed because oil refineries had figured out ways to use more products from crude oil.

Bitumen asphalt flat roof.

Bitumen roofs have been around for a long time. The hot applied asphalt or coal tar pitch blends with the bitumen soaked roof felt and creates a monolithic roof membrane. 5 tell tale signs it s time to repair or replace your asphalt or felt flat roof. Modified bitumen is installed in multiple layers multi ply roof each of which is torched to the surface below at every turn of the roll.

Bitumen roof advantages and disadvantages. They have a proven track record that can be counted on. Modified bitumen an asphalt based multi ply flat roofing system is considered a modern take on its close cousin bur or built up roof. Some observers suggest it s harder to replace a flat roof than a traditional pitched shingle roof because of the labor required to remove its layers especially on older flat roofs.

Firestone building products manufactures traditional built up systems modified bitumen membrane systems hybrid built up and modified bitumen systems. The good news is a longer lasting roofing material has a lower environmental impact. Asphalt flat roof construction repair and replacement with an epdm rubber roofing membrane. While the lifespan is less than the more advanced options the price point alone can make modified bitumen one of the best flat roof materials for some.

Materials such as layers of fiberglass or polyester are added to the asphalt to add strength to a flat roof. This surface is susceptible to cracking and blistering which reduces the typical lifespan to just 10 to 15 years. This could mean flat roofs may not raise the same red flags they used to. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology.

Flat roofs are hard to replace. Modified bitumen is a type of asphalt product that can be applied in a number of ways to the roof in both hot and cold temperatures. The resulting asphalt by product was of lower quality. Firestone asphalt roofing delivers exceptional performance on flat and low slope commercial roofs in even the most extreme climates and applications.

Owens corning deckseal sa sbs cap 39 375 ft w x 32 833 ft l 100 sq ft shasta white roll roofing. Built up roofs are installed using several layers of a special type of roofing felt that has been asphalt impregnated and embedded in bitumen applied with a hot mop. Modified bitumen roofing is a roofing asphalt. It cannot be bonded to uneven surfaces such as shingles as this hinders the membrane from successfully bonding onto the surface.