The good news is a longer lasting roofing material has a lower environmental impact.
Bitumen asphalt flat 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.
They have a proven track record that can be counted on.
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.
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.
Firestone building products manufactures traditional built up systems modified bitumen membrane systems hybrid built up and modified bitumen systems.
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.
Modified bitumen an asphalt based multi ply flat roofing system is considered a modern take on its close cousin bur or built up roof.
The hot applied asphalt or coal tar pitch blends with the bitumen soaked roof felt and creates a monolithic roof membrane.
Modified bitumen roofing is a roofing asphalt.
But now flat roofs often are constructed with fewer layers because of improved waterproofing technology.
Modified bitumen roofs use an asphalt membrane as the base of the roof itself.
The resulting asphalt by product was of lower quality.
Materials such as layers of fiberglass or polyester are added to the asphalt to add strength to a flat roof.
Flat roofs are hard to replace.
Bitumen roofs have been around for a long time.
An epdm rubber roof can be bonded to asphalt but this depends on the rubber membrane system you are using.
This could mean flat roofs may not raise the same red flags they used to.
Asphalt flat roof construction repair and replacement with an epdm rubber roofing membrane.
This surface is susceptible to cracking and blistering which reduces the typical lifespan to just 10 to 15 years.
It cannot be bonded to uneven surfaces such as shingles as this hinders the membrane from successfully bonding onto the surface.
Development modified bitumen was developed because oil refineries had figured out ways to use more products from crude oil.
5 tell tale signs it s time to repair or replace your asphalt or felt flat roof.
Firestone asphalt roofing delivers exceptional performance on flat and low slope commercial roofs in even the most extreme climates and applications.