Wall insulation
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Existing homes
It is difficult to insulate the walls in houses that are already built. Take the opportunity to insulate when you renovate and have either the inside or outside cladding of walls removed. Make sure there is building paper in the wall as insulation should not come into contact with cladding
An easier option is to insulate the ceiling and under the floors which is where over a third (33%) of heat loss occurs.
Take action
Find out more about insultion options in the topics about
New homes
The New Zealand Building Code specifies minimum mandatory insulation standards for new houses.
Take action
- Refer to the section Your building design: Insulation for new homes.
More information
- For comprehensive information on insulation, download the Department of Building and Housing booklet Your guide to smarter insulation, PDF 2.9 MB [Smarter insulation booklet.]
- Standards New Zealand publication on installing insulation, NZS4246:2006. [Standards New Zealand website.]