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How it works
The insulation traps the rising heat from the house acting as a blanket for your house.
How much will loft insulation cost?
For an average family home, the insulation costs would be approximately £200 to £300. It does depend on if you have any existing insulation in your loft, as it may only need to be topped up.
If you decided to install this insulation yourself, it is widely believed that this will pay for itself in about 2 years.How do I find out how much loft insulation I have?
| Average number of rolls needed * | ||||||
Area covered per roll |
2 bed Semi or 2 bed Terrace. 50m² |
3 bed Terrace. 60m² |
3 bed Semi. 80m² |
3 bed Det. 100m² |
4 bed Det. 120m² |
|
| Space Combi-Roll 100mm | 13.89m² |
4 |
5 |
6 |
8 |
9 |
* The number of rolls are provided as an approximate calculation and should be used as guidance only
It's easy to check how much loft insulation you have already. Just slide a tape measure or ruler down the side of the existing loft insulation until it hits the plasterboard. The recommended depth is 270mm so if your current coverage is lower than this it requires topping up.
How much loft insulation do I need?
Essentially, the greater the thickness of loft insulation, the greater the energy and cost savings will be. To ensure that you don't end up buying too much, make sure you measure the area that you want to insulate and calculate the correct amount.
Installing your insulation
- Before you begin installing loft insulation you should wear goggles, gloves, and a dust mask.
- It is essential that the loft is cleared first before it is insulated. By starting at the furthest end, unroll the first roll so it fits in between the ceiling joists. Please make sure you do not insulate underneath the cold water tank.
- To help prevent condensation and damp build-up, special care needs to be taken around the eves. It is recommended to allow a gap of 25mm from the eves to improve air flow.
- Once rolled out, the loft insulation will be most effective if it isn't flattened down.
- To avoid fire risk, always leave a gap between the insulation and any hot flues, chimneys and light fittings.
