The Eco Design Advisor (EDA) website is a free independent service that can help with information about insulation, ventilation, moisture barriers and much more. 

Whether you are building a new home, renovating or looking for options to improve the comfort, health and performance of your existing home, you’ll find a wealth of information within this site. You can also use this website to book a visit with your local EDA at your own home.

This award winning sevice is free to use, and includes personalised,  independent advice from professionals you can trust.

https://www.ecodesignadvisor.org.nz/