1 2 the total span is equal to the horizontal span that one rafter will cover.
Traditional roof construction details.
This reflects the weatherproofing requirements of older roofing materials like thatch and peg tiles.
There are two basic methods of pitched roof construction.
50mm wide by 75mm 100mm or 125mm deep are all.
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.
Traditional or cut roof the traditional option is steeply pitched rarely less than 35.
Flat roofs pitched or sloping roofs.
This can be determined by the size of the timbers or the size of the roof.
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.
Pitched room traditional joinery traditionally roofs were constructed on site using sawn timber typically with all joints simply nailed together.
There are two basic types of roof construction.
One pitched roof construction method is a cut roof method.
The rafters are the main load bearing elements of the roof.
In this method there are joists and rafters.
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 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.
Gable end roof construction if the pitched roof is not a lean to but a normal gable roof we have to divide the total roof span by two in order to form two right angle triangles back to back.
A truss roof using factory made trusses which are delivered to site complete and just erected.
The finished structure is readily adaptable.
There are a couple of different methods for constructing pitched style roofs.