To address the growing contribution to Australia’s greenhouse gas emissions by the commercial building sector, in 2010 minimum energy performance requirements were introduced into the Building Code of Australia (BCA) Volume One. Section J of BCA 2010 codifies minimum glazing thermal performance measures for both facade vision glazing and rooflights.
The difficulty with Section J is that it fails to explain in a simple and easy-to-use manner what is meant by a compliant design. This paper attempts to fill the current knowledge gap by presenting a range of strategies and design charts for different climate zones, to enable commercial building designers to quickly design innovative, high-performance, BCA-compliant facades.
** This design note was updated in February 2015 and May 2016 to reference NCC 2016.
Click here to go to updated design note. **