AS/NZS 4859.1:2002: Materials for the thermal insulation of buildings – General criteria and technical provisions.

For further information, please visit the Standards Australia website.

Conforming to AS 4859.1 is also a requirement of Building Codes of Australia.

For further information, please visit the website for the Australian Building Codes Board.

Increased energy efficiency requirements for all new dwellings built in South Australia are now in effect.
The new ‘6-star’ energy efficiency requirement – which also applies to alterations or additions to existing homes – replaces the previous 5-star energy efficiency requirement which had been in place since 2006.

What are the major changes from 5 stars to 6 stars?

  • An increased level of insulation required in walls, roofs and suspended floors.
  • More comprehensive requirements placed on glazing.

How can new homes and extensions comply?
The BCA and the SA Housing Code provide two ways of achieving compliance with the 6-star requirements:

  • Designing and constructing in accordance with new prescriptive provisions (available in SA Housing Code Amendment 18, adopted 1 May 2010 – Energy efficiency provisions are adopted 1 September 2010)
  • Having assessment by an approved computer-based energy efficiency rating program (such as FirstRate5, AccuRate or BERSPro) with the result a 6-star rating or better and certain prescriptive construction requirements.

SA Government Building Code Page