Roof Angles Nz

Divide the first part of the ratio by 12 to work out the pitch.

Roof angles nz.

This result should be referenced to the wind load span design graphs. To convert between american roofing ratios and pitch degrees follow these steps. They determine our compliance with new zealand design standards and the new zealand building code. For high wind areas or strong storms a pitch of 4 12 6 12 18 5 26 5 angle is recommended.

Minimum roof pitch for roof claddings. Roofing type profile style minimum pitch conditions e2 as1 compliant. In the situation where a building has two adjacent walls at right angles to each and the roof pitch is 10 degrees or greater the catchment area is equal to 1 1. Angle the angle of a roof is the same as the roof s slope except instead of being.

Slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run this is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares. Two membrane roofing systems butyl rubber and epdm see table 1 comply with acceptable solution e2 as1. A number of new zealand and joint australian new zealand standards cover roof construction roofing materials and components. Hip roofs can offer extra living space with an addition of a dormer or a crow s nest.

On a regular basis pryda build is assessed by independent structural engineering consultants. For a fuller explanation of this refer to the nz metal roof and wall cladding code of practice. The new zealand building code sets the minimum performance parameters for the design and construction of roofs. A 12 12 pitch roof has a pitch angle of 45.

The roofing and cladding in accordance with generally acceptable practice by reference to as nzs 1170 2 2011 and or nzs 3604 2011. April 2012 nz metal roof and wall cladding code of practice table of contents v 2 2 page 3 table of contents 1 1 0 table of contents 2 0p erformance 3 0 construction load 4 0 d esign 5 0f lashings 6 0p enetrations 7 0i nstallation 8 0 roof drainage 9 0 plastic roof lighting 10 0 pressed metal tiles. There is considerable variation across new zealand and for confirmation a. Hip roofs are more expensive to build than a gable roof.

What degree angle is a 12 12 pitch roof. Find the inverse tangent of the pitch to find the angle in degrees. They are permitted to be laid to a minimum slope of 1 5 for roofs and 1 slope for decking but with conditions see table 1. New zealand metal roofing manufacturers inc.

Pryda build software abides by all established building code requirements including those in the following documents. Roof edge protection using standard scaffolding is outlined in the best practice guidelines for scaffolding in new zealand.