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 Trevor Pringle
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1 October 2016, Build 156, Feature article
Perversely, the draught-free, airtight homes of today might be harbouring plenty of internal moisture. Well designed ventilation is needed to manage this moisture and avoid the perils of mould and health issues.
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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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