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Acceptable Solution G7/AS2: Natural Light for simple buildings excluding those with borrowed daylight.

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Abbreviation
G7/AS2 (First edition)
Version
First edition, unamended
Valid from
29/11/2021
Information provider
Ministry of Business, Innovation and Employment,
Information type
Acceptable Solution,
Format
PDF,
Description

The Acceptable Solution G7/AS2 applies to housing, old people’s homes, and early childhood centres that have habitable spaces with:

  • a) simple façade designs; and
  • b) external vertical windows; and
  • c) typical room heights (2.4 m to 3.0 m) that can be described by their glazing-to-wall ratio (GWR); and
  • d) glazing visible light transmission (VLT); and
  • e) simple horizontal overhang shading devices.

Scope

The Acceptable Solution G7/AS2 does not include solutions for:

  • a) habitable spaces that rely on daylight borrowed from another space; or
  • b) habitable spaces that do not have vertical windows in external walls; or
  • c) habitable spaces that include non-standard features such as advanced daylight redirection systems, complex facades, top lighting strategies, double-height spaces, internal divisions, internal obstructions or other specialized designs.

For buildings that have more complex configuration or internal rooms with borrowed light, Verification Method G7/VM2 or an alternative means may be used to demonstrate compliance.

Previous versions:
G7/AS1 (Amd 2) (First edition, Amendment 2)
G7/AS1 (Amd 1) (First Edition, Amendment 1)
For assistance with locating previous versions, please contact the information provider.
Notes/comments

This is the first edition of G7/AS2. However, prior to its release, similar requirements were previously found within G7/AS1. The main changes from the previous version of G7/AS1 are:

  • The scope of G7/AS1 has been reduced to cover only simple buildings up to 3 storeys in low density developments. G7/AS2 applies to simple buildings in low, medium and high density developments. However, it is more suitable for simple higher rise buildings and apartments.
  • Requirements for complex buildings including higher rise buildings and apartments can be found in the Verification Methods G7/VM1. To reflect the new scope of the documents and the new document layout, a new introduction and scope has been provided in Part 1. General.
  • Requirements for illuminance in habitable spaces in G7/AS1 have been replaced with new text in Part 2. Illuminance.
  • Requirements for awareness of the outside environment in G7/AS2 has been reproduced from G7/AS1. However, it is no longer applicable for awareness of the outside through another space (Refer to Verification Method G7/VM1).
  • The definitions page has been revised to include all defined terms used in this document in Appendix B.
View on Information Provider website Download this resource (PDF, 896KB)
For assistance with locating previous versions, please contact the information provider.

This is the first edition of G7/AS2. However, prior to its release, similar requirements were previously found within G7/AS1. The main changes from the previous version of G7/AS1 are:

  • The scope of G7/AS1 has been reduced to cover only simple buildings up to 3 storeys in low density developments. G7/AS2 applies to simple buildings in low, medium and high density developments. However, it is more suitable for simple higher rise buildings and apartments.
  • Requirements for complex buildings including higher rise buildings and apartments can be found in the Verification Methods G7/VM1. To reflect the new scope of the documents and the new document layout, a new introduction and scope has been provided in Part 1. General.
  • Requirements for illuminance in habitable spaces in G7/AS1 have been replaced with new text in Part 2. Illuminance.
  • Requirements for awareness of the outside environment in G7/AS2 has been reproduced from G7/AS1. However, it is no longer applicable for awareness of the outside through another space (Refer to Verification Method G7/VM1).
  • The definitions page has been revised to include all defined terms used in this document in Appendix B.
This resource is not cited by any other resources.

Acceptable Solution G7/AS2: Natural Light for simple buildings excluding those with borrowed daylight.

This document is not CITED BY any other resources:

Acceptable Solution G7/AS2: Natural Light for simple buildings excluding those with borrowed daylight.

Description

The Acceptable Solution G7/AS2 applies to housing, old people’s homes, and early childhood centres that have habitable spaces with:

  • a) simple façade designs; and
  • b) external vertical windows; and
  • c) typical room heights (2.4 m to 3.0 m) that can be described by their glazing-to-wall ratio (GWR); and
  • d) glazing visible light transmission (VLT); and
  • e) simple horizontal overhang shading devices.

View on Information Provider website Download this resource (PDF, 896KB)
Acceptable Solution G7/AS2: Natural Light for simple buildings excluding those with borrowed daylight.
Description

The Acceptable Solution G7/AS2 applies to housing, old people’s homes, and early childhood centres that have habitable spaces with:

  • a) simple façade designs; and
  • b) external vertical windows; and
  • c) typical room heights (2.4 m to 3.0 m) that can be described by their glazing-to-wall ratio (GWR); and
  • d) glazing visible light transmission (VLT); and
  • e) simple horizontal overhang shading devices.
View on Information Provider website Download this resource (PDF, 896KB)
This resource does not cite any other resources.

Acceptable Solution G7/AS2: Natural Light for simple buildings excluding those with borrowed daylight.

This resource does not CITE any other resources.
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