One of the major changes to the National Construction Code (NCC) in 2019 is the increased requirements for thermal performance and energy efficiency in Section J. The updated Code recognises that thermal bridges created by a standard aluminium window or door frame can significantly reduce a building’s overall thermal performance due to excess heat transfer through the frame. As a result, designers and specifiers face an increased risk of non-compliance when using individual, low-performing frame components. The solution: thermal breaks.

Code Breaker: Specifying Thermally Broken Aluminium Framing for Thermal Performance, Efficiency and Compliance with NCC Section J provides a thorough examination of thermal breaks, how they work, and how they impact window and door performance. We also take a close look at the architectural benefits of thermally broken windows, such as reducing energy consumption, increasing building longevity and maintaining occupant comfort. Finally we look at how thermally broken windows can help you comply with the stringent energy efficiency requirements of the NCC, while providing greater flexibility when designing exterior facades.

Established in 1974, Alspec is the market leader in the design and distribution of innovative aluminium systems to the architectural, industrial and home improvement markets. The company’s innovative ThermAFrame® window framing system utilises the latest in European Polyamide Thermal Break technology combined with Australian design principles to achieve the best possible results in energy rating in a system that is easy to fabricate and install.