Search results for 'roofs'

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Keeping skillion roofs dry

1 October 2005, Build 90

For most skillion roofs the amount of air movement in the roof cavity, although limited, is sufficient to remove small amounts of vapour. The trick is to keep those amounts of water vapour small.

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School indoor moisture

By Stephan Rupp, Cara Askew 1 February 2017, Build 158, Feature article

BRANZ has been measuring moisture levels in a school’s classrooms. This information is providing a sound basis for understanding the indoor climate and designing moisture-safe long-span roofs in schools.

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Airtightness and ventilation

By Stephen McNeil 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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