BRANZ warmer, drier, healthier buildings

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Moisture in parapets

By Greg Overton 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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Combating internal moisture

By Stephen McNeil 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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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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