Cavity Wall Insulation

Most properties constructed between 1924 and 1982 have external walls made up of two layers with a small gap in between, usually known as the cavity. Homes with un-insulated cavity walls will transfer a considerable amount of heat to the external environment. Homes built after 1982 usually have cavity wall insulation built in during construction, in accordance with building regulations introduced at the time.

Cellulose, glass wool or mineral wool is usually blown into a cavity of a property through small holes until the entire cavity is filled. Any cosmetic alterations, such as holes, would be barely visible once the process is complete.

The cost of insulating a gas heated, semi detached, three bedroom house is around £500. Cavity Wall Insulation could save the average household £110 a year on fuel bills through reduced heat transfer. So after 5 years the Cavity Wall Insulation pays for itself.

A number of criteria must be met in order for Cavity Wall Insulation to be installed. External walls must not contain any previous Cavity Wall Insulation, Brickwork or masonry must be in good condition and the cavity must be at least 50mm wide.

With the increased awareness of climate change, Cavity Wall Insulation is also very important at addressing climate change. Carbon emissions are reduced significantly through reduced energy consumption.

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Cavity Wall Insulation

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