Ventilation

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Dealing with internal moisture

By Trevor Pringle 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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Measuring airflows

By Dr Manfred Plagmann 1 February 2016, Build 152, Feature article

Ventilation systems in New Zealand homes rarely have their airflows measured and adjusted during installation, resulting in poorly ventilated rooms. Using active flow hoods during commissioning could change this.

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Ventilation options

By Stephen McNeil 1 February 2016, Build 152, Feature article

Sufficient ventilation is crucial as our homes become more airtight. A mix of passive and mechanical options can work well, but all designs should start by getting the source extraction measures right.

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Passive roof ventilation

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.

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House condition matters

By Vicki White 1 October 2016, Build 156, Feature article

Early results from the latest House Condition Survey indicate the continued presence of mould in over half the properties. This is bad news, as evidence links mould and damp houses with poor health and social wellbeing.

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