Site results
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Weathertightness, Air quality and Ventilation Engineering (WAVE)
<p>WAVE (Weathertightness, Air quality and Ventilation Engineering) was a 6-year programme that ran from October 2009 until October 2015. The work was jointly funded by the Building Research Levy and the Ministry of Science and Innovation.</p>
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Ventilation and moisture control
<p>Daily activities in the home such as cooking, bathing and even just breathing produce moisture.</p>
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Indoor air quality
<p>In this stream, we characterised the performance of devices such as photocatalytic oxidisers to see how they can be used effectively in real-world situations such as schools.</p>
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Warmer, drier and healthier buildings
The Warmer, drier and healthier buildings programme is improving our understanding of the issues, exploring solutions and looking at ways of implementing our research findings through evidence-based information.
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Roof ventilation #3: Air permeability of common New Zealand ceilings and ceiling penetrations
<p>BRANZ has tested the air permeability of a range of common ceiling types and fixtures. Acoustic tiles were by far the leakiest type of ceiling, and old-style incandescent downlights allowed by far the largest amount of air leakage into the roof space. The findings can help address the problem of moisture being transported into airtight roof spaces.</p>
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ISOCell Air Seal
<p data-block-key="r7ct5">ISOCell Air Seal is a wall cladding pipe and service penetration seal consisting of an elastic EPDM sleeve fitted with a self-adhesive flange.</p>
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Interstitial moisture
<p>The interstitial moisture (condensation within the building structure) stream looked at moisture management in roof spaces - both residential and commercial.</p>
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Indoor air quality #4: Project: Indoor air quality in New Zealand homes and garages
<p>The indoor air quality of seven homes in the Wellington region was monitored over May-September 2017. The houses represented different ages and construction types. Airtightness was found to be correlated with house age, with the older houses having higher natural ventilation/air leakage. Indoor airborne particulates were generally higher than outside, mostly generated from cooking and wood burners. Outdoor air pollution infiltrates indoors unimpeded. Most occupied bedrooms had higher levels of carbon dioxide than recommended due to poor ventilation when occupied.</p>
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Bostik Expanda Pro Foam/Pro Gun Foam Air Seals
<p>Bostik Expanda Pro Foam/Pro Gun Foam are self-expanding polyurethane foam air seals used around window and door penetrations and other cladding fenestration trim cavities to assist with weathertightness and energy efficiency.</p>
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AIRE 50 mm
<p>Nominal thickness of 50 mm and nominal weight of 3.8 kg/m².</p>