The future of New Zealand building is focused on energy efficiency, no longer is air gaps and moisture traps a condoned characteristic (in old building or newly fast built spec housing yes they unfortunately still are). Now the movement is towards ‘low energy’ and ‘passive’ housing designs and is fast becoming the new way to design and build. With standards to ensure what you pay for is what you will get.
Triple-glazing is what enables windows to achieve U-values of 1.0 and better. U-values measure how effective a material is an insulator. The lower the U-value is, the better the material is as a heat insulator. For example, a cavity wall has a U-value of 1.6 W/m²
In Norway legislation is dictating that soon all new buildings will be triple-glazed. New Zealand has quite a way to go yet, but it is certainly here and becoming a prominent builder of new ‘low energy’ and ‘passive’ housing.