Timber Pitched Roof Construction

The pitch of a roof is its vertical rise divided by its horizontal span and is a measure of its steepness.

Timber pitched roof construction.

Pitched roof construction. One pitched roof construction method is a cut roof method. Pitched roof designing buildings wiki share your construction industry knowledge. The latter stages of construction felt battening tiling remain the same regardless of the framing method used.

A pitched roof is a roof comprising a sloping surface or surfaces with an angle of usually over 20 degrees. This is more of a traditional manner in regards to cutting the timber while onsite and building up the roof by the use of rafters ridge boards joists and purlins among others. Building a pitched roof prefabricated trusses. It is a bi fold bi planer roof with a ridge at its highest point.

All the figures are based on roofing tiles or slates laid on timber laths over sarking felt. Pitched roof timber sizes. To be more specific a pitched roof requires a pitch of more than 10 degrees or a roof with two slopes that meet at a central ridge. Each truss is lifted into position and fixed to the plate.

There are two basic methods of pitched roof construction. The following tables give details of the allowable spans and spacing for some of the more common timber sizes used in traditional roofing construction.