Insulation and Engery Costs

Insulate your roof, ceiling and walls
Save up to 45% on heating and cooling energy with roof and ceiling insulation and up to an extra 15% with wall insulation.

The effectiveness of insulation is measured as an 'R value' based on its thickness and density. The higher the R value, the better the insulation.

* Use insulation rated R3.5 or higher for ceilings.
* Use R2.0 rated insulation for walls, as they generally have a smaller air gap than a roof space.

If you're replastering or replacing existing external wall materials take the opportunity to insulate your walls. A rebate is available if you have insulation professionally installed into uninsulated ceilings of older homes.

Pay attention to suspended floors
Save up to 5% of your winter energy costs with appropriate floor insulation under suspended floors. Concrete slabs use the insulating value of the ground below and need minimal insulation.

Choose the right insulation
Speak to an energy-efficient builder, designer or insulation retailer to help you match the right insulation product to your situation.

Use a trained installer
Check that your installer has been trained to meet the Australian Standard. When it's correctly installed, there'll be no gaps to cut the effectiveness of the insulation. If you want to receive the insulation rebate you must use a trained installer who is participating in the rebate scheme.