Traditional Timber Roof Construction Details

The rafters are the main load bearing elements of the roof.

Traditional timber roof construction details.

Covers pitched roof materials basic pitched roof designs cold and warm pitched roofs and pitched roof construction. Gable a gable roof has a ridge at the center and slopes in two directions. It is possible to divide timber framed buildings into four building types. Part 2 pitched roof construction.

Part 4 flat roof construction. The most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to. This can be determined by the size of the timbers or the size of the roof. One pitched roof construction method is a cut roof method.

There are two basic methods of pitched roof construction. The roof is a separate structural element which bears onto the external walls the roof acting as a lid on a box. An example of each is shown in figure 2 1. 11 some examples of older traditional roofs.

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. Traditional or cut roofs usually comprise a series of sloping timbers rafters fixed to a wall plate at their feet and a ridge board or possibly a wall plate at their. They span from the wallplate to the ridge board providing a platform for the underlay battens and tiles. Post and truss.

In this method there are joists and rafters. 10 complex new roofs. 7 simple traditional roofs. They can also be used to support a flat ceiling.

9 complex purlin roofs. It is the form most commonly used by. The overall construction of a traditional cut roof is to ensure that the load of the roof is evenly transmitted to the walls below. Covers flat roof materials and flat.

Part 3 pitched roof detail. By adding ceiling joists a length of timber running horizontally between the rafter feet to the couple roof form the structure becomes much more secure. A cut roof this is the traditional method of cutting the timber on site and building up the roof using rafters ridge boards joists and purlins etc the exact details being determined by the size of roof size of timbers etc. The joist acts as a tie preventing the outward deflection of the wall and increases the potential roof span.

There are a couple of different methods for constructing pitched style roofs. 8 simple purlin roofs. Box frame below left construction consists of wall frames connected at bay intervals by cross tie beams. Pitched room traditional joinery traditionally roofs were constructed on site using sawn timber typically with all joints simply nailed together.

A truss roof using factory made trusses which are delivered to site complete and just erected.