We design roofs using the roofcon licenced software this allows for the design of custom roof trusses to the specifications set in place international truss systems structural roof truss package also known as roofcon trusscon quotecon is used for the design detailing estimating manufacture and 3d visualisation of complex trussed rafter roofs.
Roof rafter sizes south africa.
Sans 1701 2 sawn eucalyptus timber part 2.
50 x 152mm rafters.
38 x 38mm battens.
Essential properties for a roof the south african national building regulations sans 4 2 states that.
Sans 1288 preservative treated timber.
Roof trusses things to consider.
Truss hangers in a variety of sizes and shapes for different applications.
The truss is a framework consisting of rafters posts and struts which supports your roof.
Resist the penetration of rain at least to the extent that any water which may penetrate the roof is of insufficient intensity to run down the inside surface of the.
Any roof covering and waterproofing system or part thereof must.
50 x 76mm purlins.
C where rafter and tie beam sizes are to be determined from table4 the slope of the roof shall.
Softwood timber pine is usually used for roof structure construction in south africa.
All web members shall be not less than 38mm x 114mm grade 5 timber.
Our sabs approved timber rafters are availble in.
3m 3 6m 4 2m 4 8m 5 4m 6m and 6 6m laminated beams availble on order 76mm x 228mm or made to order.
Sans 1460 laminated timber gluglam sans 1701 1 sawn eucalyptus timber part 1.
38mm x 114mm 38mm x 152mm 50mm x 152mm 38mm x 228mm 50mm x 228mm all our timber rafters are available in the following lengths.
The important point to keep in mind when you use your truss calculator is that every truss calculation is completely unique and is based on the size of your roof and its specific dimensions.
They have different density and strength specifications to timber locally available sizes and designs may need to be adapted to suit local sizes and conditions.
Bracing of top chords of rafters for a tiled roof with a span of less than 6 6m.
Sa pine cca treated.
Free returns in store.
And types that are not standard south african sections nor types.
Sans 542 concrete roofing tiles.
Ii be not less than 17 nor more than 35 for class b covering.
General rules for the construction of roofs.
50 x 228mm rafters.
