Webinar: Fire 101: Means of escape
Plumbing and Drainage Guide 3rd edition (PDF)
This guide explains the general principles of the plumbing codes and standards for sanitary plumbing in New Zealand and Australia. Issues such as backflow prevention, protection from scalding and explosion by hot water installations and the use of air admittance valves are explained in clear and simple text. This edition was updated and released in April 2024 to reflect recent changes to AS/NZ3500 series and amendments to New Zealand Building Code clauses G12 and G13.
Good Practice Guide: Timber cladding (3rd edition)
Timber cladding materials and skills needed for building and installation of traditional claddings have changed over the years. The conditions for building new timber-clad buildings have also changed over the years. Sites that would have earlier been avoided are now being built on, and buildings are also larger and more complex.
Other factors, such as weathertightness issues, have become more relevant. Designers have to consider carefully how they will achieve weathertight cladding solutions when traditional materials are being employed to satisfy homeowners' demands for complex buildings on more exposed sites.
This guide gives a comprehensive overview of the issues to be addressed by designers and installers of timber weatherboard and plywood sheet claddings.
Site results
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SR132 Environmental inventory of three common NZ composite sheet materials
<p>A truncated life-cycle inventory study of the three common types of New Zealand-produced wood-fibre-based composite boards (fibre-cement board, medium-density fibre-board and plywood sheeting) was conducted and an examination of the three composite boards from raw material acquisition through to the finished product on the factory floor was made.</p><p>The environmental aspects investigated were: energy and material inputs and discharges to air, land and water. An environmental profile was derived, listing all the major inputs and outputs in the production of 1 kg or 1 tonne of respective composite board.</p>
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Comfortable temperatures
<p data-block-key="x5h4w">Many opportunities are available for most new spec homes to improve their year-round comfort and reduce additional heating and cooling needs.</p>
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CodeMark complaints and appeals
<p>If you have a complaint about a product with a BRANZ CodeMark certificate, you can lodge it through this page. You can also make a complaint about any of BRANZ's CodeMark processes related to your own product or appeal certification decisions.</p>
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Indoor air quality
<p>In this stream, we characterised the performance of devices such as photocatalytic oxidisers to see how they can be used effectively in real-world situations such as schools.</p>
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Climate change
Our climate is changing, with big implications for the building industry. BRANZ is working with partners to help the industry reduce greenhouse gas emissions and be better prepared to cope with the changes.
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Reference buildings
<p>BRANZ has calculated the carbon footprint and other environmental impacts of a set of reference buildings using the current data available in LCAQuick.</p>
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Building materials durability testing
<p>BRANZ tests the durability of building materials, components and construction methods to determine if they will remain functional over the 5, 15 or 50-year period required for compliance with New Zealand Building Code clause B2 <i>Durability</i>.</p>
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Elephant Plasterboard 60 minute wall junction with Comflor concrete floors
<p>60 minute steel stud Elephant Plasterboard wall junction detail between the top of the wall and underside of Comflor castellated concrete flooring.</p>
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Energy efficiency
Energy efficiency is about using the least possible energy to perform a task. Reducing energy loss and using passive design elements such as effective house orientation, glazing and insulation can make homes warmer, healthier and cheaper to run.
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BEES for energy modelling
<p>The data collected was used to create thermal simulation models of the buildings.</p>