There has been some confusion about the requirements for timberbased flooring and floor structures under wet areas. Wet areas are spaces that contain sanitary fixtures or appliances, including laundries, bathrooms, kitchens and toilets.
This is guidance for designers and building consent authorities having difficulty interpreting New Zealand Standard NZS 3602: Timber and Wood Based Products for Use in Building regarding treatment of flooring in wet areas.
This information was confirmed as current in February 2016. It originally appeared in Codewords newsletters prior to January 2014.