AS/NZS 4200.1:1994

Specifies the requirements for materials suitable for use as a pliable building membrane (also known as underlay) when it is intended to act as a sarking membrane or thermal insulation, or a vapour barrier in a domestic, commercial or industrial building. It does not specify the thermal insulation requirements, nor does it include materials for use in air handling ducts.

This Standard sets out the requirements for materials suitable for use as a pliable building membrane (also known as underlay) in any of the following circumstances:(a) When it is intended to act as a sarking membrane or thermal insulation or a vapour barrier when installed in a building structure.(b) When installed either independently, or as a facing to other materials such as insulation materials.(c) When installed in domestic, commercial or industrial buildings.Materials for use in air-handling ducts are generally outside the scope of this Standard. However, this document may be called up by a future the air-handling duct Standard.Vapour barriers used under concrete slabs are outside the scope of this Standard.NOTES:1 Methods for determining compliance with this Standard are given in Appendix A.2 Thermal insulation requirements are specified in AS 2627.3 This Standard will be referenced in the Building Code of Australia by way of BCA Amendment 7 intended for publication in October 1994, thereby superseding the previous editions of AS 1736 - 1975 and AS 1903 - 1976, which will be withdrawn 12 months from the date of publication of this Standard.Users are advised that when BCA Amendment 7 is issued, it will not necessarily be gazetted in each State/Territory at the time of printing.

Originated in Australia as AS 4179-1994.
Previous and first joint edition AS/NZS 4179:1997.
Third edition 2014.