Traditional Cut Roof Construction

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

Traditional cut roof construction.

The overall construction of a traditional cut roof is to ensure that the load of the roof is evenly transmitted to the walls below. A birdsmouth cut has 2 parts. One pitched roof construction method is a cut roof method. 3 lean to roofs less common.

Pitched roof construction a cut roof this is the traditional method of cutting the timber on site and building up the roof using rafters. Traditional or cut roof. A horizontal cut called the seat cut and a vertical cut called a shoulder cut. The traditional option is steeply pitched rarely less than 35.

The model is constructed as part of the training methods used to prepare. The roof can be cut in the traditional way or fabricated from mono trusses. 2 lean to roofs simple. Traditional cut roofs 1 introduction.

Lean to roofs are very common. The video gives an overview of the construction processes associated with erecting a traditional hip end return roof. Eaves detail traditional cut roof prefabricated truss roof abutment detail chimney detail timber flat roof ridge detail valley detail. By providing two opposite lean to roofs a roof with a centre valley can be formed.

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 sizes of lean to roofs can vary considerably. The seat rests on top of the wall that you re attaching the particular rafter to while the shoulder cut parallels the wall and allows several inches of each rafter to overhang the roof.

The quality of the design of dormers varies considerably from single skin walls clad with upvc sheeting to double skin designs with superior insulation properties. The rafters are the main load bearing elements of the roof. This reflects the weatherproofing requirements of older roofing materials like thatch and peg tiles. This can be determined by the size of the timbers or the size of the roof.

Every member of a traditional cut roof is individually cut and assembled on site.