About 35% of all heat loss from UK homes takes place through external walls. Most homes built before 1920 have solid walls.
Solid walls are usually notoriuosly bad for retaining heat, typically allowing twice as much heat to escape as cavity walls.
Solid walls can usually be insulated by applying insulation material internally.
If you’re unsure whether your walls have a cavity in them you can usually check by either looking at the pattern of bricks or by measuring the thickness of the walls next to a door or window:
- If the thickness of the wall is 260mm or greater, the wall probably has a cavity.
- If the brickwork is exposed, look at the brick pattern. If the bricks are all oblong, laid end-to-end then the wall is likely to have a cavity. If some of the bricks are laid with the square end facing, the wall is likely to be solid.
- If the wall is stone, it is likely to be solid.
Benefits of Internal Wall Insulation
- Significantly reduce heat loss. One way you can significantly reduce heat loss within your home is to install insulation within its internal property walls.
- Reduce your bills dramatically.
- You don't need to change the property's exterior.
- You can get the work fully funded.
