Roof Plane Brace Nz
Roof braces can consist of either i roof plane brace or ii roof space brace or combination of the two.
Roof plane brace nz. Dormers porches do not require bracing. Method 1 post wall frame. Method 2 prop to ground. The lower roof plan area no soffit 7 040 6 2 8 1 3 1 6 2 3 1 68 7 m.
Bracing required in monopitch roofs 30 october 2014 clause 10 3 4 in nzs 3604 2011 timber framed buildings doesn t require diagonal strap bracing in the roof plane if the supporting braced wall frames extend up to the underside of the rafters and the rafters have a sheet ceiling attached directly to their underside. One crossed pair of strips may be used in each location where a diagonal brace is required. One roof brace is required per 50 m with a minimum of two per ridge line. Fix using 5 x lumberlok product nails 30mm x 3 15mm diameter at each end.
Roof planes less than 6m2 e g. Braces are marked in red a and b. Braces are marked in red a and b. The lower roof plan area no soffit 7 040 6 2 8 1 3 1 6 2 3 1 68 7 m.
Strip brace provides an ideal bracing system for walls or roof plane. Upper storey solution a minimum of two braces are required for the upper storey roof see figure 1. Gable roofs were braced with diagonal braces that were either 6 x 1 150 x 25 mm solid bracing cut in between rafters or a surface brace fixed below the rafters figure 3. One roof brace is required per 50 m with a minimum of two per ridge line.
Roof braces are not required on roofs where sarking is installed as per nzs 3604 2011 clause 10 4 4 or where a ceiling diaphragm is installed and is attached to the rafters. The bracing described in this brochure covers both framed roofs and fully trussed roofs. Lumberlok roof and wall bracing products are available in various lengths widths and gauges to suit a variety of bracing applications. Upper storey solution a minimum of two braces are required for the upper storey roof see figure 1.
Roof area is the actual plan area of the roof and includes overhangs. Strip brace provides an ideal bracing system for walls or roof plane. For roofs the out of plane component of the dead load of the roofing and purlins is assumed to be carried in tension by fastbrace or bolted brace channels tied across the ridge or into the ridge beam for monoslope roofs. Roof space bracing was provided by a bracing member running from the ridge board at the gable end to an internal wall top plate figure 4.
Pryda has been an integral part of the building industry in new zealand for over 50 years particularly in timber truss and frame solutions with the development of a diverse. Angle brace may be used as either compression or tension brace.