Asphalt Flat Roof Covering

It consists of multiple layers of tarpaper rolled in asphalt and applied to the roof.

Asphalt flat roof covering.

Flat roof covering membranes on greenspec. Burs consisted of alternative layers of heavy building paper and hot tar. There are many different types of flat roof coverings mineral felt torch on felt mastic asphalt grp and fibreglass pvc single ply membrane tpo single ply membrane thermoplastic polyolefin and epdm single ply membrane elastometric membranes. The roof felt asphalt tar layering is repeated in overlapping layers until the assembly is two to fours plies in thickness.

We ve also shared a few steps on how to apply it to your own roof. Built up roofs are manufactured using built up layers of either tar saturated paper and liquid tar with gravel asphalt rolled asphalt or modified bitumen. But flat roof is a convenient term for a class of multimembrane systems with very shallow pitches. As the roof is installed more and more layers are added to increase durability and longevity hence the name built up.

I ve seen and worked on many asphalt roofs that are at least 40 years old. At one time built up roofs burs once represented half of all flat roof coverings. Asphalt is heated in an asphalt boiler and laid while still hot onto the roof trowelled into shape and cools to form a very hard durable roof. Owens corning deckseal sa sbs cap 39 375 ft w x 32 833 ft l 100 sq ft shasta white roll roofing.

Tar and gravel 2. This surface is susceptible to cracking and blistering which reduces the typical lifespan to just 10 to 15 years. There are many different types of flat roof coverings here s a breakdown of them. Cost roughly a 20 30 more than a torch on roof see our flat roof pricepage.

As we will see below the epdm rubber roof has largely emerged as the flat roof of choice due to its ease of installation and relatively low cost. No roof should be completely flat or it won t shed water. The rolled asphalt roof covering is similar to putting asphalt shingles on your roof. Data and information is provided for information purposes only and is not intended for trading purposes.

Modified bitumen roofs use an asphalt membrane as the base of the roof itself.