NEW ZEALAND H1 REQUIREMENTS

Energy efficiency

Smarter building envelopes create warmer, drier and healthier spaces while using less energy.

Discuss your project

BUILDING CODE H1

Better performance from the building envelope.

New Zealand’s H1 energy-efficiency requirements increased the insulation performance expected from new homes and commercial buildings.

The goal is straightforward: buildings that need less energy to heat and are warmer, drier and healthier, with less impact on the environment.

Get practical H1 insulation advice

SIX CLIMATE ZONES

Requirements change depending on where you build.

New Zealand is divided into six climate zones so insulation requirements better reflect the temperatures experienced in each part of the country.

Map of New Zealand showing the six H1 climate zones
New Zealand’s six H1 climate zones and the regions included in each zone.

CONSTRUCTION R-VALUES

H1 requirements at a glance.

These diagrams show the construction R-values from the original guidance. The right solution still depends on the building design and consent pathway, so talk with our team before specifying products.

Large buildings

Buildings over 300m², excluding industrial buildings.

H1 construction R-values by climate zone for large buildings over 300 square metres
Open the diagram to view it at full size.

Housing and small buildings

All housing and buildings under 300m².

H1 construction R-values by climate zone for housing and small buildings under 300 square metres
Open the diagram to view it at full size.

TALK TO THE TEAM

Turn the H1 calculation into a buildable system.

Brad and James can help match the required performance with practical insulation products and installation details.