Choosing between a Section J Deemed-to-Satisfy assessment and JV3 modelling can influence the façade, glazing, insulation, services coordination and approval strategy of a commercial building.

The decision is often described as “Section J versus JV3”. Technically, that is not quite the correct comparison.

Section J establishes energy-efficiency requirements for relevant projects assessed under NCC Volume One. A Deemed-to-Satisfy Solution and a JV3-supported Performance Solution are different ways of demonstrating that the applicable requirements have been addressed.

Should the project follow the applicable Section J Deemed-to-Satisfy provisions, or would a JV3 performance pathway provide a more suitable response?