They span from the wallplate to the ridge board providing a platform for the underlay battens and tiles.
Traditional roof construction details.
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 rafters are the main load bearing elements of the roof.
50mm wide by 75mm 100mm or 125mm deep are all.
1 2 the total span is equal to the horizontal span that one rafter will cover.
In this method there are joists and rafters.
Traditional or cut roof the traditional option is steeply pitched rarely less than 35.
There are two basic methods of pitched roof construction.
Every member of a traditional cut roof is individually cut and assembled on site.
The timbers are often 400mm or so centres and vary in size according to span.
There are a couple of different methods for constructing pitched style roofs.
One pitched roof construction method is a cut roof method.
A truss roof using factory made trusses which are delivered to site complete and just erected.
The finished structure is readily adaptable.
There are two basic types of roof construction.
Flat roofs pitched or sloping 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 head.
This can be determined by the size of the timbers or the size of the roof.
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.
Pitched room traditional joinery traditionally roofs were constructed on site using sawn timber typically with all joints simply nailed together.