Requirements for insulation installation
Eligible insulation products include:
Insulation must meet minimum product R-Values:
- Ceiling - R5.0
- Underfloor - R2.0
- Wall - R2.5
These minimums have been set with the objective of ensuring that retrofitted homes should achieve overall insulation R values that are consistent with the National Construction Code minimums for the predominant Tasmanian Climate zone (cool temperate - 7).
Subject to advice from the insulation installer, it may be possible for you to have existing insulation topped up to achieve these minimum R-values.
Metallic foil insulation products will not be permitted for installations. This is primarily due to the elevated risk of electrocution arising from metallic foil use. Not with standing this, foil insulation is not recommended in Tasmania as other insulation products are more appropriate to achieve required levels of thermal efficiency. (Reference CBOS - "Safe installation of insulation materials")
You can find more detail here on the ReCFIT website.