Too much moisture in the roof
A recently renovated home had a problem with mould in the roof cavity. BRANZ found moisture from a poorly ventilated bathroom was passing through downlights into an airtight roof space. It’s a lesson for others.
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A recently renovated home had a problem with mould in the roof cavity. BRANZ found moisture from a poorly ventilated bathroom was passing through downlights into an airtight roof space. It’s a lesson for others.
As innovative new building materials are created to meet sustainable building practices, a means of evaluating their durability is needed. A BRANZ project is on the case, developing a framework to do just this.
BRANZ is researching the airtightness of new homes as part of its ‘warmer, drier and healthier buildings’ programme. This, the first of three articles, discusses airtightness and infiltration and dispels some common myths.