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How much insulation should I install?

The thickness of insulation is measured in ‘R-values’. The thicker the insulation, the larger the R value,

The minimum amount of insulation you need is set by the Building Code of Australia. and differs based on your location across the country. Recommended R-values differ depending on your climatic zone or region.

As a general rule of thumb:

  • Ceilings require at least R4.1* up to R6.3 for alpine regions
  • Walls require at least R2.8 up to R3.8 for alpine regions
  • Floors range from R1.5 for warmer climates up to R3.35 for alpine regions. 

*R4.1 is approximately 20cm in thickness.

A professional insulation installer will be able to provide the best recommendations for your home.