Timber Pitched Roof Construction

There are two basic methods of pitched roof construction.

Timber pitched roof construction.

Building a pitched roof prefabricated trusses. A pitched roof is a roof comprising a sloping surface or surfaces with an angle of usually over 20 degrees. Pitched roof timber sizes. A pitched roof is a roof that slopes downwards typically in two parts at an angle from a central ridge but sometimes in one part from one edge to another.

The pitch of a roof is its vertical rise divided by its horizontal span and is a measure of its steepness. The latter stages of construction felt battening tiling remain the same regardless of the framing method used. 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. 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.

It is a bi fold bi planer roof with a ridge at its highest point. A trussed roof will often rest on a timber wall plate as with a conventional one. The following tables give details of the allowable spans and spacing for some of the more common timber sizes used in traditional roofing construction. Pitched roof construction.

Each truss is lifted into position and fixed to the plate. Pitched roof designing buildings wiki share your construction industry knowledge.