About 35 percent of heat loss  from an average uninsulated home occurs through the ceiling. The most common way to insulate the ceiling is to install insulation between joists, combined with slabs fit in the top – this eliminates thermal bridging, which is the heat escaping through the wooden joists.

Up to 25 percent of heat  from an average uninsulated home is lost through the walls. Once you have insulated your ceilings and under your floor, think about wall insulation. You should especially consider adding wall insulation when you are removing cladding or linings for any reason – it is the easiest and most cost-effective time.

The amount of insulation you can install may depend on the thickness of the walls and the size of the framing.

14 percent more heat loss 1 can occur through the floor of uninsulated houses. Insulation should be used underneath suspended timber and suspended concrete floors, around the edge and underside of concrete floor slabs in new homes, and around the edge of concrete slabs in existing homes if possible. 

Do not forget to lay a moisture barrier over the ground. BRANZ research has shown that 0.4 litres of water can evaporate from 1m² of ground in 24 hours – that is 60 litres per day on average for a 150m² house – it can damage your insulation, and cause dampness problems in your house.ort bio for each team member. Make it brief and informative to keep visitors engaged.