Framing that complies with NZS 3604:2011 will meet the requirements of the Building Code. Studs are at a maximum of 600 mm centre - dwangs are not necessary for effective bracing but may be used.
As 7mm IPL Non-Structural Ply is Non-Structural Plywood manufactured to AS/NZ 2269:2012, it is suitable for design of earthquake and wind bracing for timber framed buildings in accordance with design codes NZS 3603 and AS/NZ 1170. This has been confirmed by EWPAA sponsored testing.
As IPL Non-Structural Ply is an integral part of the building structure, it must be durable in each application i.e. have atleast 50 years durability rating. In interior dry applications (i.e. 18% moisture content or less) untreated IPL Non-Structural Ply is acceptable for use.
However, in applications where IPLNon-Structural Ply may be subject to wetting, dampness or condensation(basically where the moisture content may exceed 18% for prolonged periods), IPL Non-Structural Ply must be preservative treated to at least H3.2 hazard rating and fixed with non-corrosive fasteners (i.e. stainless steel or silicone bronze).
IPL Non-Structural Ply will withstand rain exposure for at least 3 months. The possible wetting may cause slight buckling of panels but generally, after drying, there is close to full recovery.
IPL Non-Structural Ply is to be installed and fixed as per the building design. As plywood dimensions can vary with changes in ambient humidity and wetting during construction, it is recommended to allow expansion gaps between adjacent panel edges of at least 2mm.
The minimum fastener requirement in New Zealand is 50mm x 2.8mm dia hot dip galvanised structural clouts.
Treated IPL Non-Structural Ply must be fixed with noncorrosive fasteners — a minimum of 50mm x 2.8mm dia stainless steel annular grooved flat head nails or hot dipped galvanised. Refer to GIB HandiBrac®installation instructions for correct installation of galvanised steel angle brackets and bolt types to be used for concrete and timber floors. Please notethat IPL Non-Structural Ply is not to be installed in contact with the ground.
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