Research report
19 January 2021
Insulating existing homes
How to insulate the roof space, walls, floors and windows of existing homes.
Many houses built before 1978 Building Code regulations took effect have no insulation. Even post-1978 houses may lack sufficient insulation. We look at how to insulate the roof space, walls, floors and windows of existing homes.
Roof space
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Floors
Walls
Windows
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