Insulation is generally the single most effective investment that can be made to improve a home’s energy efficiency. It acts as a barrier to heat loss and heat gain, particularly in roofs and ceilings, walls and floors.
It’s really only an option if you live in a top floor unit with a cavity between your ceiling and the roof.
The Australian Government’s Your Energy Savings site has comprehensive information on insulation that covers:
- Insulation standards & requirements
- Types of insulation
- Safety with insulation
The cavity space above your ceiling is most likely to be common property (check your strata plan to make sure). You’ll need a resolution of the owners corporation at a general meeting. The owners corporation will also require a by-law to ensure you’re responsible for ongoing maintenance.