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H1 Energy efficiency support

This page contains useful information and tools to help meet or exceed the performance requirements of Building Code clause H1 Energy efficiency.

The Ministry of Business, Innovation and Employment (MBIE) has changed the minimum thermal performance requirements under Building Code clause H1 Energy efficiency. Anyone using Acceptable Solution H1/AS1 and/or Verification Method H1/VM1 for building consent applications can no longer use the 4th edition document but must use the 5th edition amendment 1.

BRANZ has developed tools and resources to meet or exceed the new requirements of H1/AS1 and H1/VM1 5th edition, Amendment 1.

Already available are bulletins BU672 Specifying floors under H1, BU670 Specifying windows and doors under H1, BU677 Specifying roofs under H1, BU678 H1 Calculation method - housing, and buildings up to 300 m2.

Resources and tools