Traditional Timber Roof Construction Details

They can also be used to support a flat ceiling.

Traditional timber roof construction details.

One pitched roof construction method is a cut roof method. The roof is a separate structural element which bears onto the external walls the roof acting as a lid on a box. There are two basic methods of pitched roof construction. Post and truss.

Pitched room traditional joinery traditionally roofs were constructed on site using sawn timber typically with all joints simply nailed together. An example of each is shown in figure 2 1. In this method there are joists and rafters. There are a couple of different methods for constructing pitched style roofs.

They span from the wallplate to the ridge board providing a platform for the underlay battens and tiles. Gable a gable roof has a ridge at the center and slopes in two directions. A truss roof using factory made trusses which are delivered to site complete and just erected. Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings.

Part 2 pitched roof construction. Covers flat roof materials and flat. It is the form most commonly used by. 7 simple traditional roofs.

The rafters are the main load bearing elements of the roof. 9 complex purlin roofs. The joist acts as a tie preventing the outward deflection of the wall and increases the potential roof span. It is possible to divide timber framed buildings into four building types.

10 complex new 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. Part 3 pitched roof detail. The overall construction of a traditional cut roof is to ensure that the load of the roof is evenly transmitted to the walls below.

Every member of a traditional cut roof is individually cut and assembled on site. Part 4 flat roof construction. 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. 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.

This can be determined by the size of the timbers or the size of the roof. Box frame below left construction consists of wall frames connected at bay intervals by cross tie beams. 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. 8 simple purlin roofs.

11 some examples of older traditional roofs.