Building Code of Australia

The BCA is produced to set minimal building standards for health and safety, building sustainability and efficiency.

Building Code of Australia

The Australian Building Code Board (ABCB) is a Council set up by the Australian State and Territories governments to produce and maintain The Building Code of Australia (BCA). The BCA is found in Volumes One and Volume Two of the National Construction Code (NCC) and is produced to set minimal building standards for health and safety, building sustainability and efficiency.

Energy Efficiency Standards

There are minimum standards for energy efficiency in new houses and apartments. These standards are commonly achieved through:

  • A house energy rating (commonly referred to as a "star rating" using the Nationwide House Energy Rating Scheme (NatHERS) accredited software);


  • Building according to the "Deemed-to-Satisfy" (DTS) provisions of the NCC.


Building a new home is the most economical time to go above and beyond minimum standards and maximise your thermal comfort. It’s also the easiest time to plan and protect yourself from future energy price rises. Be aware of the construction methods that are popular within the region in which you want to build so that you can make the right decision when choosing your insulation product.

Nationwide House Energy Rating Scheme (NatHERS)

The Nationwide House Energy Rating (NatHER) is a Star Rating from 0 to 10 that measures how energy efficient a house is, based on its design. The rating applies to the building envelope: the roof, walls, floor and windows. A well-insulated and well-designed house provides year-round comfort, cutting cooling and heating bills, and reducing greenhouse gas emissions.

National Construction Code 2022

On 26 August 2022, Building Ministers agreed to update the residential energy efficiency standards for new houses and apartments in the NCC 2022. The changes aim to give the community and industry the ability to design and build energy efficient, comfortable and cost effective homes.

Timeline for NCC 2022

When are the changes happening?

The NCC 2022 will commence on 1 May 2023, with a transition period to 1 October 2023 for the residential energy efficiency standards. These transitional arrangements acknowledge the pressures that industry is currently facing by providing additional time to adjust.

The Australian Building Codes Board (ABCB) and state jurisdictions will work with industry on a strategy to support the industry’s implementation of the updated residential energy efficiency standards.

How Knauf Insulation can help

Whilst the primary role of insulation is to provide thermal performance, choosing the right insulation will also determine a building’s acoustic and fire safety properties as well as the level of comfort it provides for its users. Our Glasswool insulation provide a unique combination of performance.

Product range