A pitched roof is a roof that slopes downwards typically in two parts at an angle from a central ridge but sometimes in one part from one edge to another.
Pitched roof construction scotland.
A pitched roof is made up of four main elements.
A breathable membrane or in older properties roofing felt also sometimes called sarking felt or slaters felt which keeps the rain out whilst the roof is being built and offers secondary protection to any water that gets.
We ll now enlighten you on a roof s pitch the 4 very basic shapes and some of the many details that go into roof design.
Cold roof separating wall 3 22 timber frame pitched roof.
Wooden joists to support the weight of the roof.
Boarded or sarked roof construction with breather membrane fully supported by plywood or t g boards scottish practice impose no wind uplift conditions on the roofing underlay and as a consequence the underlay selected by the specifier is not subject to the wind uplift pressure zonal classification requirements of a bs5534 code of.
Cold deck roof a cold deck roof is where the insulation is placed between the joists rafters or in between the ceiling joists in the case of a pitch roof.
Pitched roof designing buildings wiki share your construction industry knowledge.
Pitched roofs examples of pitched roofs.
A warm deck roof is where the insulation is placed on top of the rafters joists and the roof covering is then placed over the insulation.
Understanding roof pitch is both fairly basic and a little complex.
Ventilated batten void warm roof separating wall 3 23 timber frame wall junction outward corner 3 24 timber frame wall junction inward corner construction details the examples are shown with u values.
A dormer is an extension usually with a window that sticks out of a sloping roof and gives you a bit more headroom.
Whilst you can have tiled roofs of 10 15 these are really flat roof construction with a cosmetic covering of tiles.
Another pitched roof construction manner is the truss roof method.
If your main interest is in flat roofs then you can learn more by reading flat roof construction part 4.
A pitched or sloping roof has a pitch of at least 15 but often much more.
No ventilation is required for these types of roofs.
This type of construction involves the use of factory made frames called tresses each of these trusses includes combining the joist.
Before you arrange to alter or add to your roof you should first check to see if you need to apply for planning permission.
For a detailed description of the process of roof slating reference should be made to bs5534 2014 the code of practice for slating and tiling for pitched roofs and vertical cladding and bs8000 part 6 workmanship on building sites.
In addition the nfrc technical bulletin 43 provides additional guidance on scottish slating practice.
The pitch of a roof is its vertical rise divided by its horizontal span and is a measure of its steepness.
