IAONZ News
Insulation Basics
- 2 March 2022
Most New Zealand homes are under-insulated. Correct insulation installation to NZS 4246 and NZ Building Code H1 is critical - gaps, folds or damp can cut performance by up to 50%. Upgrading ceiling, floor and wall insulation improves warmth, energy efficiency, Healthy Homes compliance, and reduces condensation, mould and respiratory illness.
Significant Building Code update to H1 Energy Efficiency
- 2 December 2021
The Ministry of Business, Innovation and Employment (MBIE) has released the biggest energy efficiency changes to the acceptable solutions and verification methods in more than a decade.
New Residential Tenancy Act provisions
- 15 August 2019
The new Residential Tenancy Act provisions have come into effect from 1 July 2019.
Media Release - 21 December 2016
- 23 December 2016
IAONZ encourages landlords to be pro-active as over 50% of assessments don’t meet new Residential Tenancy Act guidelines.

