Cavity Wall Insulation
Cavity Wall Insulation
Up to half of all heat lost in an average house goes straight through the walls and proper wall insulation can stop up to two thirds of this heat loss.
After loft insulation, it is the most cost-effective single
insulation measure.
In most houses built after 1924, the external walls are made of two layers with a small air gap or 'cavity' between them. If your home has unfilled cavity walls, a considerable portion of your heating bills will be spent warming the air outside.
Filling the gap between the two walls of a house with an insulating material decreases the amount of heat escaping through the walls. Cavity fill reduces heat loss through walls by up to 40%
The usual materials used for cavity wall insulation are mineral wool, urea formaldehyde foam and .
How do I know if cavity insualtion has been put into my walls?
You will see small drill holes in the wall that have been filled as in the pictures below.
Find Green Deal Cavity Wall Insulation Installers in the UK
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