Superglass is a leading UK manufacturer of home insulation products. A common question posed is why do we need to insulate a loft?
Un-insulated roofs account for a quarter of a home’s heat loss. That lost heat costs you money, makes your house colder and wastes valuable energy, as well as contributing to rising CO2 levels.
Just by fitting your loft with 270mm deep insulation at ceiling level you can:
- Save up to a £175 every year on your heating bills.
- Reduce your home’s carbon footprint by up to 800kg every year.
- Keep your home warmer in the winter and cooler in the summer.
- Prevent condensation by keeping interior surfaces warmer.
The Energy Saving Trust estimates the following for insulating your loft :
(0 to 270mm)
100 to 270mm)
|Approximate saving per year||Up to £175||£25|
|Installation cost||£100 to £350||£100 to £350|
|Time taken to pay for itself||Up to two years||From four years|
|DIY cost||£50 to £350||£50 to £350|
|Time taken to pay for itself||Up to two years||From two years|
|Carbon dioxide saving per year||Around 720kg||Around 110kg|
These are estimates based on insulating a gas-heated, semi-detached home with three bedrooms, showing savings when you insulate an uninsulated loft, and when you top up 100mm of insulation to 270mm. (The recommended depth for mineral wool insulation is 270mm but other materials need different depths.)
Heat rises, and in an uninsulated home a quarter of your heat is lost through the roof. Insulating your loft, attic or flat roof is a simple and effective way to save that waste and reduce your heating bills – you can even do it yourself.
Loft insulation is effective for at least 40 years, and it will pay for itself over and over again in that time.
If your loft is already insulated, it’s worth checking that you’ve got enough insulation to get the maximum saving. If everyone in the UK installed 270mm loft insulation, we could save nearly £500 million – and 2.7 million tonnes of carbon dioxide every year, the equivalent of taking nearly 100,000 cars off the road.