User:Samanmustafah/sandbox

Classwork 3

Cavity wall insulation

If your home was built after 1920, the chances are that its external walls are made of two layers with a gap or cavity between them. Cavity wall insulation fills that gap, keeping the warmth in to save energy. It can also help reduce condensation inside the house if this is a problem on your external walls.

Not sure whether you have cavity walls? Work out what sort of walls you have.

How much could you save? Is cavity wall insulation suitable for your home? How is insulation installed? What is the insulation made of? Saman Mustafa Kamal