Flat Roof Framework

Membrane roofing consists of a layer of insulation board topped by sheets the membrane of epdm rubber or other material.

Flat roof framework.

The most common type used for residential flat roofing is epdm ethylene propylene diene monomer a synthetic rubber sheet material that is also commonly used as a pond liner. Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. We love the flexibility of a flat roof for certain design limitations but they have a bit of reputation for leaks and repairs.

While most home builders will outsource the construction of roofing trusses the rafter supports of the roof itself learning to frame a roof yourself is one of the true arts of carpentry and a basic primer is covered below. Another thing to keep in mind when deciding the pitch of the roof is that a high pitched roof will allow for an attic. Design survey technical support and advice. They are usually spaced with 16 48 inches between each other.

This will give additional stability to the roof structure. Spa s flat roofing framework is designed to allow suppliers with local and nationwide specialist roofing contractors to install a high level specification roofing system that is supplied by high quality system suppliers within a consortium led bid. Rafters make the main framework of the entire roof irrespective of the type of the roof. Framing a roof is the last step in framing new construction.

Flat roofs are great in climates with little rain but if you have a pitched roof you ll have the advantage of water draining away more easily. The scope and structure of the framework includes. It rests on the main frame of the wall and is inclined up to meet the ridge of another rafter where they are fastened together. For additional stability you can also use steel joists that are built into one or both of the walls.