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.
Residential flat roof construction.
From there the flat roof system you choose will determine the materials you apply.
Most flat roofs are typically not as long lasting or durable as sloped ones because the latter shed snow and rain a lot quicker.
Built up roof bur modified bitumen roof mbr and rubber membrane roof epdm.
However over the last few decades new and advanced materials have been developed.
For additional stability you can also use steel joists that are built into one or both of the walls.
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.
We have dedicated low slope crews that specialize in the installation of tpo and pvc roofing.
Modified bitumen an asphalt based multi ply flat roofing system is considered a modern take on its close cousin bur or built up roof.
Many slope in several directions like squashed hip roofs toward scupper holes that connect to downspouts.
Tpo and pvc roofing is a long lasting low maintenance solution with no more coatings sealants dangerous installs or rusting out drains.
Residential flat roofing three tree roofing specializes in low slope roofing or flat roofing.
The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.
This will give additional stability to the roof structure.
A classic flat roof is either almost completely level or has a very slight pitch of 3 in 12 inches or less.