NCC section J and commercial building facade design – 2016 update

Note. The updated note NCC 2019 Section J and commercial building facade design is now available. Changes introduced in NCC 2019 are subject to a one-year transition period from 1 May 2019, during which time, either the NCC 2016 or NCC 2019 requirements may be used.

Library at the Dock by Clare Design + HayballTo address the growing contribution to Australia’s greenhouse gas emissions by the commercial building sector, Section J of the National Construction Code (NCC) Volume One codifies minimum glazing thermal performance measures for both facade vision glazing and roof lights. In 2016, the NCC moved to a three year cycle, with the next revision due in May 2019.

The difficulty with Section J is that it fails to explain succinctly to a designer what is meant by a compliant design or what one might look like. This paper attempts to address this failure by presenting a range of strategies and design charts for different climate zones to enable commercial building designers to quickly design innovative, high-performance, NCC-compliant facade concepts.

note summary
  1. Introduction
  2. Background
  3. Key concepts
  4. Exceeding minimum practice
  5. Summary and further recommendations