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Verification Method E2/VM1: Cladding systems of buildings up to 10 m in height – including junctions with windows, doors and other penetrations

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Abbreviation
E2/VM1 (Fourth edition)
Version
Fourth edition
Valid from
28/07/2025
Information provider
Ministry of Business, Innovation and Employment,
Information type
Verification Method,
Format
PDF,
Cites
This resource cites 3 documents (show Citations)
Description

E2 External Moisture Verification Method E2/VM1 Fourth Edition provides a compliance pathway for meeting the weathertightness performance requirements of Clause E2.3.2 of the New Zealand Building Code, specifically for cladding systems on buildings up to 10 metres in height.

The scope includes wall and roof cladding systems, including junctions with windows, doors, and penetrations, for buildings within the scope of NZS 3604 and designed for wind pressures up to 2500 Pa.

It is suitable for residential and similar buildings using drained and vented cavity systems.

The verification method outlines detailed test procedures  including static, cyclic, and defect-based water penetration tests. The fourth edition includes updated formatting, consistent structure, and revised definitions.

Scope

This verification method sets out methods of compliance for external moisture provisions related to the penetration of water for cladding systems. It can be used to demonstrate compliance for:

  • a) exterior wall cladding systems in Part 2. Wall cladding systems; and/or
  • b) pitched roofing systems in Part 3. Roof cladding systems.

Additional limitations on the scope of this verification method are provided in Subsections 2.1.1 and 3.1.1.

Items outside the scope of this document

This verification method does not contain provisions for skillion roofs or commercial or industrial roofing.

Previous versions:
E2/VM1 (Amd 10) (Third Edition, Amendment 10)
E2/VM1 (Amd 9) (Third Edition, Amendment 9)
E2/VM1 (Amd 8) (Third Edition, Amendment 8)
E2/VM1 (Amd 7) (Third Edition, Amendment 7)
E2/VM1 (Amd 6) (Third Edition, Amendment 6)
E2/VM1 (Amd 5, Errata 2) (Third Edition, Amedment 5, Errata 2)
E2/VM1 (Amd 5) (Third Edition, Amendment 5)
E2/VM1 (Amd 4) (Third Edition, Amendment 4)
For assistance with locating previous versions, please contact the information provider.
Notes/comments

This verification method is the fourth edition of E2/VM1. The main changes from the previous version are:

  • The document has been published in a standalone format and the layout has been revised to improve clarity.
  • Minor amendments have been made to correct typos, grammar, cross-references, punctuation, wording, and formatting of the document.
  • The verification method now refers to the Building Product Specifications in relation to windows and doors.
  • References have been revised to reflect the documents cited in this acceptable solution. 
  • Definitions have been revised to reflect the terms used in this acceptable solution.
View on Information Provider website Download this resource (PDF, 321KB)
For assistance with locating previous versions, please contact the information provider.

This verification method is the fourth edition of E2/VM1. The main changes from the previous version are:

  • The document has been published in a standalone format and the layout has been revised to improve clarity.
  • Minor amendments have been made to correct typos, grammar, cross-references, punctuation, wording, and formatting of the document.
  • The verification method now refers to the Building Product Specifications in relation to windows and doors.
  • References have been revised to reflect the documents cited in this acceptable solution. 
  • Definitions have been revised to reflect the terms used in this acceptable solution.
This resource is not cited by any other resources.

Verification Method E2/VM1: Cladding systems of buildings up to 10 m in height – including junctions with windows, doors and other penetrations

This document is not CITED BY any other resources:

Verification Method E2/VM1: Cladding systems of buildings up to 10 m in height – including junctions with windows, doors and other penetrations

Description

E2 External Moisture Verification Method E2/VM1 Fourth Edition provides a compliance pathway for meeting the weathertightness performance requirements of Clause E2.3.2 of the New Zealand Building Code, specifically for cladding systems on buildings up to 10 metres in height.

The scope includes wall and roof cladding systems, including junctions with windows, doors, and penetrations, for buildings within the scope of NZS 3604 and designed for wind pressures up to 2500 Pa.

It is suitable for residential and similar buildings using drained and vented cavity systems.

The verification method outlines detailed test procedures  including static, cyclic, and defect-based water penetration tests. The fourth edition includes updated formatting, consistent structure, and revised definitions.

View on Information Provider website Download this resource (PDF, 321KB)
Verification Method E2/VM1: Cladding systems of buildings up to 10 m in height – including junctions with windows, doors and other penetrations
Description

E2 External Moisture Verification Method E2/VM1 Fourth Edition provides a compliance pathway for meeting the weathertightness performance requirements of Clause E2.3.2 of the New Zealand Building Code, specifically for cladding systems on buildings up to 10 metres in height.

The scope includes wall and roof cladding systems, including junctions with windows, doors, and penetrations, for buildings within the scope of NZS 3604 and designed for wind pressures up to 2500 Pa.

It is suitable for residential and similar buildings using drained and vented cavity systems.

The verification method outlines detailed test procedures  including static, cyclic, and defect-based water penetration tests. The fourth edition includes updated formatting, consistent structure, and revised definitions.

View on Information Provider website Download this resource (PDF, 321KB)
This resource cites:

Verification Method E2/VM1: Cladding systems of buildings up to 10 m in height – including junctions with windows, doors and other penetrations

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