The New Zealand Building Code clause H1 sets criteria for the energy efficiency of New Zealand homes and buildings.

There are a range of options for showing compliance with clause H1 of the Building Code for residential or commercial buildings.

We offer our own free H1 calculation service when using Mammoth® thermal insulation. 

Mammoth offers a free H1 calculation service to assist designers, architects and builders. We look at the most practical build ups that will show compliance, while considering the cost implication. We offer modelling method along with calculation method as part of the service. The modelling tends to achieve good results, looking at theoretical true building performance, overheating, considering solar gains and losses etc. It is the most accurate tool we have to get an idea of performance. If you’re interested in using the service, or would like some technical support, contact Jeremy on jeremy@mammoth.co.nz or Justin on justin@mammoth.co.nz