Traditional Roof Construction Timbers

The overall construction of a traditional cut roof is to ensure that the load of the roof is evenly transmitted to the walls below.

Traditional roof construction timbers.

Laid across roof beams. 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 head. 8 simple 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.

The rafters are the main load bearing elements of the roof. The beams will. The two basic construction methods of pitched roofs are. If the structural frame of load bearing timber is left exposed on the exterior of the building it may be.

Timber framing and post and beam construction are traditional methods of building with heavy timbers creating structures using squared off and carefully fitted and joined timbers with joints secured by large wooden pegs. Prefabricated trusses which are delivered to site and erected. This places the rafters joists inside the thermal envelope of the building and means that no special ventilation measures need to be taken to maintain the roof timbers. A traditional method of cutting timber on site and building up the roof using rafters joists purlins ridge boards etc.

10 complex new roofs. 11 some examples of older traditional roofs. The traditional option is steeply pitched rarely less than 35. Pitched roof construction.

Roof building is one of the more complex aspects of site carpentry and is a highly skilled job as the timbers are cut on site and erected one at a time it is both relatively slow and relatively expensive. 7 simple traditional roofs. They span from the wallplate to the ridge board providing a platform for the underlay battens and tiles. Rafters have a tendency to flatten under gravity thrusting outwards on the walls.

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. The alternative construction is the traditional cold deck. This can be determined by the size of the timbers or the size of the roof. It is commonplace in wooden buildings through the 19th century.

One pitched roof construction method is a cut roof method. Here insulation is usually placed between the roof joists i e. Get this revit file here. A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof trusses usually occur at regular intervals linked by longitudinal timbers such as purlins the space between each truss is known as a bay.

9 complex purlin roofs.