Wet area failures
The recently completed BRANZ seminar on wet areas highlighted two particular areas of concern – the number of wet area failures and builders not taking mould found during renovation work seriously.
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The recently completed BRANZ seminar on wet areas highlighted two particular areas of concern – the number of wet area failures and builders not taking mould found during renovation work seriously.
New Zealand has a highly variable, and volatile, climate. Early this year, the lower half of the North Island experienced unseasonal heavy rainfall, causing widespread floods. Des Molloy checked out the repairs on some affected homes.
Changes to the Building Code have clarified where wet area linings and finishes should be used instead of ordinary linings and finishes.
Mould requires high relative humidities to grow. Reduce a building’s indoor relative humidity and you stop mould growth.
Covering a concrete slab too soon can result in the floor covering being damaged. To get the timing right, it helps to understand what the various measurements are telling you.
Here are 26 good practice tips from BRANZ for the design of wet areas such as bathrooms, kitchens and laundries.
Wet area designs must comply with Building Code Clause E3 Internal moisture, the key Building Code reference for wet area design and construction. So what do E3 and E3/AS1 contain, and what is missing?