Roof ventilation
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 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 Trevor Pringle – 1 August 2016, Build 155, Feature article
Is it a quality defect or not? It can be hard to decide, but using these established guidelines and standards will help everyone to view work from the same starting point when checking for defects.
By Ann Galloway – 1 June 2016, Build 154
It can be difficult to determine the critical dimensions for roof flashings in E2/AS1. We step through Table 7 to help clarify confusion when working out the minimum sizes of flashings.
By Stephan Rupp – 1 February 2016, Build 152, Feature article
Twenty years ago, roofs didn’t need to be specifically ventilated. Today, things are different. That’s because 21st century homes are more airtight, and if they aren’t aired, condensation may form.