NZBC Insulation Requirements

Energy Efficiency

Eurothane GP PIR insulation boards provide a thermal insulation solution that fully meets the requirements of current legislation.

The NZ building code update, effective from August 2022, includes new higher R-values for NZS4218 and an expanded number of climate zones used in the insulation requirements. Please refer to the H1 Energy Efficiency Acceptable Solution site for details. You can access and download the H1 Energy Efficiency H1/AS1 document here.

Building Your Thermal Envelope

As a guide, here is the chart for minimum requirements for buildings without an embedded heating system, and the map of the NZ climate zones, taken from the 5th edition amendment of the H1 Energy Efficiency document:

Map of NZ Climate Zones