The model is constructed as part of the training methods used to prepare.
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.
The finished structure is readily adaptable.
A birdsmouth cut has 2 parts.
Pitched roof construction a cut roof this is the traditional method of cutting the timber on site and building up the roof using rafters.
A truss roof using factory made trusses which are delivered to site complete and just erected.
Not only is the volume large enough to convert into living space but the structure can generally be easily altered.
Lean to roofs are very common.
The traditional option is steeply pitched rarely less than 35.
The roof can be cut in the traditional way or fabricated from mono trusses.
The rafters are the main load bearing elements of the roof.
By providing two opposite lean to roofs a roof with a centre valley can be formed.
Traditional or cut 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.
Dormer windows require their own mini roofs and great care must be given to their detailing and construction.
Traditional cut roofs 1 introduction.
Every member of a traditional cut roof is individually cut and assembled on site.
2 lean to roofs simple.
The sizes of lean to roofs can vary considerably.
Eaves detail traditional cut roof prefabricated truss roof abutment detail chimney detail timber flat roof ridge detail valley detail.
They span from the wallplate to the ridge board providing a platform for the underlay battens and tiles.
3 lean to roofs less common.
A horizontal cut called the seat cut and a vertical cut called a shoulder cut.
This reflects the weatherproofing requirements of older roofing materials like thatch and peg tiles.
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 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.
