Roofing underlay and moisture
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, Luca Quaglia – 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.
By Dr Manfred Plagmann – 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.
By Dr Manfred Plagmann – 1 August 2016, Build 155
Some roof designs, such as skillion roofs, must include ventilation to manage roof moisture. Recent BRANZ research provides advice on the best place for effective vent openings in low wind zones.
By Dr Manfred Plagmann, Stephan Rupp – 1 December 2015, Build 151, Feature article
Recent BRANZ research has confirmed how moisture gets into roof spaces and highlighted the critical role ventilation has in removing it.
By Mark Bassett – 1 December 2006, Build 97
A recent trip to North America provided opportunities for further refining the BRANZ moisture research programme. Some of the papers presented at a building physics conference are highlighted here.