The Insulation Association of NZ is the primary industry association for quality insulation, installation and training.
About IAONZ
The Insulation Association of New Zealand (IAONZ) is an association which has established nationwide performance benchmarks for the supply and installation of residential and commercial insulation. In our role we have agreed standards of quality for product and installation in accordance with the NZ Building Code and AS/NZ Standards. Provide training to installers, ensuring quality installation delivery for their customers and work with Government and Industry to develop the insulation industry
IAONZ Manufacturer Members: Find quality manufacturers & distributors of residential and commercial insulation throughout New Zealand.
IAONZ Installer Members: Find trained, expert installers of residential and commercial insulation throughout New Zealand.
Training: We offer insulation installation training for those who wish to hold and maintain IAONZ membership.
IAONZ Advocacy: for better insulation standards and outcomes across New Zealand - giving members a stronger, trusted industry voice and delivering healthier, warmer, more energy-efficient homes and buildings.
Myth Vs Fact: Overheating in some New Zealand homes is caused by “too much insulation”.
- 9 February 2026
For some reason, people think that insulation creates heat. Not true; insulation is designed to reduce heat flow from hot to cold. Ideal for keeping a house warm in winter, and cool in the summer. Once heat enters your house in summer, there needs to be good methods to remove that heat. Removing insulation is not the answer.
Installing It Right Matters: NZS 4246 and Better-Performing Buildings
- 23 January 2026
NZS 4246 sets the benchmark for installing insulation, so it performs as designed. Correct installation reduces heat loss and energy use in both retrofit and new builds, while supporting safer, healthier, higher-performing buildings as H1 requirements continue to evolve.
Updated Changes to H1 | NZ Building Code
- 27 November 2025
The Ministry of Business, Innovation and Employment (MBIE) updated the settings in November 2025 - for compliance with the energy efficiency requirements of clause H1 of the Building Code.