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.
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