How can I reduce my glazing costs?

.NatHERS rating method often gives you very expensive windows. This is certainly true for a 7 star energy rating that is a requirement under NCC 2022.

BCA developed VURB as a verification method that allows for compliance with energy requirements using computer modelling. Using methods like NatHERS rating or DtS, buildings with complex geometries face difficulties achieving compliance with the code. In such instances, VURB helps to achieve a cost-effective compliance with low cost glazing. Using VURB, you can add insulation in requirements to part of the building (i.e. under-slab) to compensate for the weak performance of cheaper glazing. Also, you can consider the impact of thermal mass, solar gain or two-way heat transfer through a concrete slab.