Asphalt Flat Roof

Just enough slope to drain water but also flat enough to be a problem if not constructed properly.

Asphalt flat roof.

Asphalt needs a reflective covering to stop heating and cooling which leads to cracking. But remember the lowest pitch accepted by most cities and counties for applying basic asphalt shingles is a 3 inch rise to a 12 inch run. Putting shingles on a flat roof is probably not the best way to go but in the event you decide you want shingles on your flat roof instead of shakes tile or metal here are a few good pointers to follow. In general materials used on flat roofs cost less than ones used on sloped ones.

Flat roofs are an ancient form mostly used in arid climates and allow the roof space to be used as a living space or a living roof flat roofs or low slope roofs are also commonly found on commercial. Asphalt roofing systems that really resist structural and thermal movement even in temperatures below 0. This could mean flat roofs may not raise the same red flags they used to. Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot.

Modified bitumen and rolled asphalt roofs cost 1 30 2 20 per sq foot depending on the number of plies. Flat roofs are hard to replace. 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. Asphalt flat roof john gilbert the white reflective coating has faded.

But now flat roofs often are constructed with fewer layers because of improved waterproofing technology. Solvent free it is made from asphalt emulsified with bentonite clay and water. Many homes and commercial buildings have flat or low pitched roof structures and many of these feature asphalt based roof systems installed on them these built up roof systems can be either smooth surfaced or have a gravel surface on them to help protect them from weathering. Upstands are most at risk as the asphalt can slump in the heat problems.

Tpo is 1 70 per sq foot. Protective chippings may need to be respread. Epdm is 1 50 per sq foot making it the cheapest single ply membrane. Henry 107 asphalt emulsion is a premium versatile coating for the protection of roofing materials metal and masonry surfaces.

Pvc is 1 90 per sq foot.