What Insulation Thickness Does The New Zealand Building Code Require
The New Zealand Building Code sets minimum standards for how well homes and buildings should be insulated. These standards are found in clause H1, which focuses on energy efficiency. The main goal is to reduce heat loss so homes are warmer in winter, cooler in summer, and cost less to run.
When looking at insulation thickness, it is important to understand that the Building Code measures performance in R-values. The R-value is a measure of how well the insulation resists heat flow. A higher R-value means better thermal performance.
The thickness of insulation you need...