Traditional Cut Roof

Dormer windows require their own mini roofs and great care must be given to their detailing and construction.

Traditional cut roof.

This reflects the weatherproofing requirements of older roofing materials like thatch and peg tiles. 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. As we have briefly mentioned above the birdsmouth joint is mainly used in forming traditional cut roofs to ensure that the rafters or joists that form the roof sit securely on top of the supporting wall plate. The roof can be cut in the traditional way or fabricated from mono trusses.

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. The rafters are the main load bearing elements of the roof. Traditional or cut roof the traditional option is steeply pitched rarely less than 35. Birdsmouth joint as used in the construction of traditional roofs close up of a birdsmouth joint.

The finished structure is readily adaptable. 50mm wide by 75mm 100mm or 125mm deep are all. Our modern design software allows the roof trusses to be designed for virtually any roof shape. They span from the wallplate to the ridge board providing a platform for the underlay battens and tiles.

A truss roof using factory made trusses which are delivered to site complete and just erected. The overall construction of a traditional cut roof is to ensure that the load of the roof is evenly transmitted to the walls below.