Asphalt Flat Roof Covering

Twin home experts review on sure coat white reflective coating system for flat roofs.

Asphalt flat roof covering. Data and information is provided for information purposes only and is not intended for trading purposes. This surface is susceptible to cracking and blistering which reduces the typical lifespan to just 10 to 15 years. The rolled asphalt roof covering is similar to putting asphalt shingles on your roof. Burs consisted of alternative layers of heavy building paper and hot tar.

There are many different types of flat roof coverings here s a breakdown of them. Flat roof covering membranes on greenspec. But flat roof is a convenient term for a class of multimembrane systems with very shallow pitches. I ve seen and worked on many asphalt roofs that are at least 40 years old.

A wear surface of finely crushed stone granules is usually applied to the top layer of hot tar to protect the built up roof assembly from uv light and weather. At one time built up roofs burs once represented half of all flat roof coverings. Tar and gravel 2. As the roof is installed more and more layers are added to increase durability and longevity hence the name built up.

No roof should be completely flat or it won t shed water. 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. 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. Owens corning deckseal sa sbs cap 39 375 ft w x 32 833 ft l 100 sq ft shasta white roll roofing.

It consists of multiple layers of tarpaper rolled in asphalt and applied to the roof. Greenspec accepts no responsibility or liability for any damages or costs of any type arising out of or in any way connected with your use of this web site. Modified bitumen roofs use an asphalt membrane as the base of the roof itself. The roof felt asphalt tar layering is repeated in overlapping layers until the assembly is two to fours plies in thickness.

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.