By Greg Overton
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1 December 2009, Build 115
The many examples of rotting parapets have raised concerns about the details used. A 2-year BRANZ project assessing the performance of parapet walls provides confidence that parapets can manage water when E2/AS1 details are used.
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By Stephen McNeil
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1 December 2015, Build 151, Feature article
Newer homes may be less draughty but concern is growing that they are accumulating too much internal moisture. Ventilation is key, and BRANZ is researching how to keep homes aired, warm and healthy.
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By Ian Cox-Smith
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1 December 2016, Build 157
Modelling of concrete floor slabs at BRANZ has provided insights into how to optimise the effectiveness of exterior perimeter edge insulation.
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By Peter McDowall
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1 April 2017, Build 159
A proven technology using UV light to clean air of contaminants is being used in a BRANZ project looking to harness it to remove mould from New Zealand homes.
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By Stephen McNeil
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1 August 2021, Build 185, Feature article
As we push for higher performance from our houses, expectations for airtightness and ventilation are changing rapidly. Some changes will be needed in design to improve airtightness, and mechanical ventilation is likely to soon be the norm.
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By Mark Bassett
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1 December 2008, Build 109, Feature article
A detailed study of water leakage through 14 walls clad with weatherboards sheds some light on the origin of leaks.
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By Greg Overton
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1 February 2009, Build 110, Feature article
Weathertightness research and issues in New Zealand and overseas were discussed recently at a meeting in Auckland.
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By Ian Cox-Smith
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1 June 2009, Build 112
What gives the best performance – insulation installed between framing, over framing or a combination? This question was put to the test in a recent BRANZ research project.
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By Malcolm Cunningham, Luca Quaglia
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1 October 2010, Build 120
A recently completed major BRANZ research project has improved understanding of how roofing underlays handle moisture in roofs and led to the development of a new test suitable for a wider range of roofing underlays.
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By Malcolm Cunningham
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1 December 2011, Build 127, Feature article
We’re all familiar with New Zealand’s cold damp houses, but to understand the causes and fix the problems, it helps to know a bit about how water vapour works.
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