14/10/2026
The H1 Schedule Method is being removed from 26 November 2026. From that date, all new residential building consent applications must use the Calculation Method or Modelling Method.
The difference matters: The Schedule Method was a lookup table by construction type. The Calculation Method is a separate R-value assessment for every wall, roof, and floor assembly in the building, calculating each aspects contribution toward the heat-loss in your home. We prefer this method as it gives the opportunity to achieve practical insulation outcomes and clearer accounting of where heat-loss is within a building.
If you have a new build in planning and haven't lodged a consent yet, confirm your designer is working to the revised method before you lodge.
Any questions, flick us a message or drop a comment below.