Suntuitive brings the future to life with smart, self-tinted window glazing. When installed to residential or commercial buildings this technology provides improved climate control and greatly enhanced energy efficiency for both single and double glazed window systems. Other benefits of this thermocromic dynamic glass technology are noise reduction and glare moderation resulting in more expansive views.
Section J has changed substantially across recent editions of the National Construction Code.
NCC 2019 delivered a major uplift in commercial building energy efficiency. NCC 2022 reorganised the framework and introduced new requirements for energy monitoring and future distributed-energy infrastructure. NCC 2025 moves further towards lower operational energy use through stronger commercial building requirements, including on-site solar photovoltaic systems for relevant buildings.
These editions should not be treated as interchangeable.
A Section J assessment prepared under NCC 2019 may use different clause references, calculation methods and minimum requirements from an assessment prepared under NCC 2022 or NCC 2025. The applicable edition may also depend on the project location, approval date, transitional arrangements and jurisdictional variations.
This guide explains the broad direction of change and what it may mean for architects, builders, developers and commercial project teams.

