Every material has a different thermal conductivity that determines its ability to conduct heat and this can be applied to every building material of your house. The less energy we're using to heat, cool or light the house, the more energy-efficient the house is.

NZGBC (New Zealand Green Building Council) developed Homestar, an independent rating tool for assessing the health, efficiency, and sustainability of homes across Aotearoa and we're proud to be members of this organization.