Traditional Timber Roof Construction Details

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

Traditional timber roof construction details.

There are a couple of different methods for constructing pitched style roofs. Every member of a traditional cut roof is individually cut and assembled on site. In this method there are joists and rafters. 7 simple traditional roofs.

The joist acts as a tie preventing the outward deflection of the wall and increases the potential roof span. They can also be used to support a flat ceiling. Covers pitched roof detail. 9 complex purlin roofs.

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. 11 some examples of older traditional roofs. 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. An example of each is shown in figure 2 1.

The overall construction of a traditional cut roof is to ensure that the load of the roof is evenly transmitted to the walls below. Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings. Part 4 flat roof construction. Part 3 pitched roof detail.

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. It is possible to divide timber framed buildings into four building types. The most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to. 8 simple purlin roofs.

Covers flat roof materials and flat. Part 2 pitched roof construction. It is the form most commonly used by. The roof is a separate structural element which bears onto the external walls the roof acting as a lid on a box.

This can be determined by the size of the timbers or the size of the roof. Covers pitched roof materials basic pitched roof designs cold and warm pitched roofs and pitched roof construction. The rafters are the main load bearing elements of the roof. They span from the wallplate to the ridge board providing a platform for the underlay battens and tiles.

There are two basic methods of pitched roof construction. One pitched roof construction method is a cut roof method. 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.

Gable a gable roof has a ridge at the center and slopes in two directions.