Raising the Bar for Energy Efficiency

BHI Architects have recently undertaken training to keep their staff informed and up-to-date on the recent changes to the National Construction Code (NCC 2022). Hosted by the Australian Institute of Architects, the training was attended by a number of industry experts who shared their insights and experience on the subject matter.

The changes to the NCC 2022, which comes into effect on 1 October 2023, will bring about significant changes in Australia, affecting all new homes and apartments. The minimum energy efficiency standards for new homes and apartments have been raised, with a minimum 7-star NatHERS energy rating now required. In addition, the Whole-of-Home (WOH) annual energy use budget has also been introduced, with new homes needing to achieve a 60/100 WOH rating and new apartments a 50/100 WOH rating.

These changes to the NCC will bring about many benefits to households, including more comfortable living spaces, reduced heating and cooling demands, and long-term savings on energy costs. Furthermore, these updates will also support Australia's transition towards a more sustainable and environmentally-friendly future, with the goal of reaching net zero emissions by 2050.

To help achieve these higher energy ratings, there are several sustainable initiatives that people can consider when building a new home. Passive solar design, using the sun's energy to heat and light the home, and natural ventilation to cool the home is the most effective way to improve the energy rating of a home. In addition, optimizing the size of the eaves and the size of the windows, coupled with the use of high-performance windows and doors, will help regulate indoor temperature and reduce the need for heating and cooling. Another highly effective way to meet the 7-star initiative is the installation of appropriate insulation in walls and ceilings (even under-slabs), which reduces heat loss in winter and heat gain in summer. Finally, the use of efficient lighting and appliances, ceiling fans along with increased zoning (to close off occasionally used rooms), can also make a significant difference to a home's energy rating.

At BHI Architects, we feel continuing professional development is crucial, and this recent training on the changes to the NCC is just one example of our commitment to staying ahead of the curve. By ensuring that all our staff members have the most current information, we are better equipped to provide our clients with the best possible service and advice.