By Nicole Allen
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1 August 2022, Build 191
A local volcanic eruption is a substantial risk to the Auckland region. Research into the impact of multiple volcanic hazards on the roofs of buildings showed that they generally deal well with volcanic ash and flying rocks landing on them.
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By Alide Elkink
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1 August 2022, Build 191
Roof construction R-values will increase to R6.6 when New Zealand Building Code Acceptable Solution H1/AS1 5th edition becomes mandatory on 1 May 2023 (6 months later than first announced). Have you thought about how you will deal with these changes in your designs?
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By Greg Burn
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1 June 2022, Build 190
BRANZ modelling identified six areas for designers to focus on to reduce the carbon footprint of a new build. In the first of this series, we look at the practical considerations for designers using rule of thumb 1 Increase construction R-values.
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By Catherine Nicholson, Anna Walsh, David Carradine
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1 October 2020, Build 180
To simplify the consenting process for structural insulated panels (SIPs), we need to know how they perform locally. A BRANZ research project is helping by examining SIP durability, earthquake and fire performance.
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By Alide Elkink
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1 October 2018, Build 168
Considering wind uplift should be top of mind when replacing a heavy roof with a lighter one, NZS 3604:2011 Timber-framed buildings outlines the necessary top plate connections.
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By Stephan Rupp
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1 February 2018, Build 164
What’s the main difference between roof construction options? BRANZ explains the science to help you design better roofs.
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By Dr Manfred Plagmann
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1 December 2016, Build 157, Feature article
BRANZ physicists have developed a useful calculation for designers to work out the minimum number and area of vents required in roof spaces.
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By Roger Shelton
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1 August 2015, Build 149
Roof failures in high winds are unfortunately too common in timber-framed buildings, but get the connections right, and the roof should stay put.
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By Trevor Pringle
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1 August 2013, Build 137, Feature article
Specifying and detailing a roof, deck or basement waterproofing membrane is not an area to cut corners.
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By Nigel Isaacs
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1 October 2012, Build 132
Prone to earthquakes and with abundant native timber, New Zealand was quick to adopt timber as a building cladding. It could even replicate stone with design elements such as quoins.
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