Cavity Wall Insulation
Save money on your energy bills with cavity wall insulation
About a third of all the heat lost in an uninsulated home escapes through the walls. By properly insulating cavity walls, you will save energy and cut costs off your heating bill.
In general, houses built from the 1990s onwards have wall insulation to keep the heat in, but if your house is older than that, it may not have any wall insulation at all.
Houses in the UK mostly have either solid walls or cavity walls:
If your house was built after the 1920s, it is likely to have cavity walls. A cavity wall is made up of two walls with a gap in between, known as the cavity; the outer leaf is usually made of brick, and the inner layer of brick or concrete block.
Pre-1920 older houses are more likely to have solid walls. A solid wall has no cavity; each wall is a single solid wall, usually made of brick or stone.
Advantages
- One of the cheapest energy saving measures you can install
- Reduces your energy bills
- Keeps you warmer in your home
- Reduces your carbon footprint
do I have a Cavity Wall?
To work out if your home has cavity walls is simple, Just take a look at the brick pattern.
If your bricks run lenghtways across, then you do. If your bricks run full lenght – half brick – full lenght etc, then you dont have a cavity wall.
Why Choose Cavity Wall Insulation?
Cavity wall insulation can cut your heating bills so much that it will pay for itself quickly. What’s more, there are grants and offers available to help pay for cavity wall insulation.
For professional installers, the job is simple, quick (about two hours) and makes no mess.
How is it installed?
The most common way of insulating cavity walls is by drilling a series of small holes, each around 25mm across (about the diameter of a ten pence-piece) into the mortar at regular intervals and injecting the insulation material into the cavity. The holes are then refilled once the insulation has been blown in. Some installers make use of a telescopic lance system for walls that are hard to access. New-build properties often have rigid insulation boards fitted into the wall cavities as part of the construction process.
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