Residential Flat Roof Construction

However over the last few decades new and advanced materials have been developed.

Residential flat roof construction.

From there the flat roof system you choose will determine the materials you apply. 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. The most important thing to know about a flat roof says tom is that it s not flat to prevent water from pooling and eventually invading the home flat roofs are always built on a slight incline at least 1 8 inch per foot. Pros and cons for flat roof materials all three types of flat roofing cost 250 to 350 per square 100 square feet but prices vary according to region and size of the roof.

Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. A classic flat roof is either almost completely level or has a very slight pitch of 3 in 12 inches or less. For additional stability you can also use steel joists that are built into one or both of the walls.

Many slope in several directions like squashed hip roofs toward scupper holes that connect to downspouts. Built up roof bur modified bitumen roof mbr and rubber membrane roof epdm. Tpo and pvc roofing is a long lasting low maintenance solution with no more coatings sealants dangerous installs or rusting out drains. Modified bitumen an asphalt based multi ply flat roofing system is considered a modern take on its close cousin bur or built up roof.

This will give additional stability to the roof structure. Most flat roofs are typically not as long lasting or durable as sloped ones because the latter shed snow and rain a lot quicker.