Skip to main content Skip to search Skip to primary navigation

B2/VM1, 3rd edition

Concurrent version: Effective on 28 July 2025

B2/VM1, 3rd edition [PDF 368 KB]

B2 Durability Verification Method B2/VM1 Third Edition provides a performance-based framework for demonstrating compliance with Clause B2 of the New Zealand Building Code. It applies to all building elements and outlines three methods for verifying durability: in-service history, laboratory testing, and comparison with similar materials. The third edition is published in a standalone format with a revised document structure and updated definitions.

Top

This information is published by the Ministry of Business, Innovation and Employment’s Chief Executive. It is a general guide only and, if used, does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case. Expert advice may be required in specific circumstances. Where this information relates to assisting people:

with compliance with the Building Act, it is published under section 175 of the Building Act
with a Weathertight Services claim, it is published under section 12 of the Weathertight Homes Resolution Services Act 2006.

Print

Print this page (recommended)