R-value is a measure of a material's resistance to heat flow. The higher the R-value, the better a material insulates.
In order to determine the optimal R-value for your home, you must consider your local climate, the area of your home that needs insulation, and your budget.
The Building Code of Australia (BCA) sets out minimum R-values for insulation in different areas of Australia. The recommended R-value for insulation varies depending on where you live, the type of insulation and the area of your home. Typically, HIA recommends an R-value of at least R4 for Roofs and R1.5 to R2.5 for walls.
Recommended R-value for Different Areas and Climates
In Australia, the recommended R-value for insulation in roofs is R4, while for walls it's R1.5 to R2.5
It's important to use insulation with a higher R-value in areas with extreme temperatures.
For tropical regions, insulation with a higher R-value is recommended to keep the heat out, while in colder regions a higher R-value is needed to keep the heat inside the house.
Insulation recommendation
Earthwool insulation is a great option for australian homeowners. It's a engineered glasswool insulation product, which is certified, long lasting, environmentally friendly, sustainable, and cost effective. It has a R-value of 4.0+ and as such meets the requirements for the Building Code of Australia. It's also easy to install and handle making it a great option.
