Roof Supports For A Pitched Roof

Hip and valley rafters are cut and fixed.

Roof supports for a pitched roof.

A pitched roof construction is the classic old school way of roof construction. A low pitched roof would be 2 12 and it means that over the space of 12 inches the roof only rises two inches. The pitch of a roof is the rise the vertical angle of the roof over the run the horizontal measurement. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

The other is just used to support the trusses. The characteristics of a roof are dependent upon the purpose of the building that it covers the available roofing. Under purlins are cut and installed. This is where a high pitched roof is necessary.

Each strap should be fixed as shown in the diagram opposite with noggins between the rafters to support the metal strap along its whole length. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7. Framing a roof is the last step in framing new construction. Vertical strapping at eaves pitched roofs.

Modern pitched roofs may be supported with trusses which are hidden behind the ceiling creating a flat ceiling inside a home with a pitched roof. A great deal depends on the pitch of the roof. Once again a 2 by 4 inch piece of lumber is placed between the trusses and parallel to the ceiling joists. Using trusses can add to the security of the roof and tends to be cheaper than utilizing the heavy duty beams needed for a pitched roof which will be open underneath.

Effective strapping at gable wall. Bevels and lengths for hip and valley rafters are determined from pitch of roof. A higher pitched roof would be better for extra living space than a lower pitched roof. A roof is part of the building envelope.

With rafters collars ties struts ridges underpurlins ceiling joists hanging beams combination hanging and strutting beams pitching plates and so on. Bevels and lengths for under purlins are determined. While most home builders will outsource the construction of roofing trusses the rafter supports of the roof itself learning to frame a roof yourself is one of the true arts of carpentry and a basic primer is covered below. Creeper rafters are cut and fixed from pattern rafter allowing for overhang.