Flat Roof Rafter Detail

That will help you remember certain factors and details to build the best possible flat roof.

Flat roof rafter detail.

A roof dormer may be gabled as in our sketch above or it may be a low slope or flat roof. The flat roof design detail can go up against different style that when nitty gritty right can ooze a cutting edge feel. Definition of hip rafter. Notice that the hip rafter forms what amounts to a descending ridge a single line that starts at the top of the roof and descends to the wall top plate at a wall corner.

A rafter that runs diagonally between the roof ridge and the top of the wall plate forming a hipped roof. Asphalt shingle can be installed on a pitch of 2 over 12 or greater. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. The size of rafters for a flat roof depends on the horizontal span of the building the type and grade of timber used and the load on the roof.

The pitch of the roof determines the roofing material you can use. It must meet the local codes for thickness at least 3 8 which is also based on the rafter or truss spacing. In our rafter type sketch above the hip rafters are drawn in blue. Main features flat roof design detail first off the flat roof design detail is an extremely basic direct and utilitarian design every single current trademark.

They are nailed securely to exterior wall plates and to each other.