Cavity Wall Insulation FAQs

Can cavity wall insulating be topped up?

Andy Brandon2021-10-20T14:42:17+00:00Yes, in some cases it may be possible to top up the cavity wall insulation because it can shrink over time and may become less effective.

How does cavity wall insulation work?

Andy Brandon2021-10-20T14:42:22+00:00It works by filling the gap in-between the outer wall and the inner wall. It stops heat loss in your home by keeping air trapped within the cavity.

What are the disadvantages of cavity wall insulation?

Andy Brandon2021-10-06T09:25:07+00:00If moisture gets into the insulation its ability to keep the house insulated and warm is diminished.

Can you install cavity wall insulation yourself?

Andy Brandon2021-10-20T14:42:26+00:00Yes, you can but it will be a lot of work and planning. It is recommended to get an expert to do it because mistakes can cost a lot of money to rectify.

How is cavity wall insulation installed?

Andy Brandon2021-10-20T14:42:31+00:00Cavity wall insulation is installed by drilling holes into the side of a building. The insulation is then injected into the wall.

What is cavity wall insulation made of?

Andy Brandon2021-10-20T14:42:35+00:00Cavity wall insulation is made of mineral wool.

Is cavity wall insulation hazardous?

Andy Brandon2021-10-20T14:42:39+00:00No, it is classed as an irritant because it can irritate your eyes and skin, making them very itchy.

Is cavity wall insulation flammable?

Andy Brandon2021-10-20T14:42:43+00:00Cavity wall insulation can be highly flammable, but because of advances in the production of insulation, it's fire retardant with a melting point of 1093 degrees C.

Does cavity wall insulation cause damp?

Andy Brandon2021-10-20T14:43:41+00:00Cavity wall insulation can cause dampness if installed incorrectly.

Is it worth getting cavity wall insulation?

Andy Brandon2021-10-20T14:43:45+00:00Yes, it is definitely worth it. After it has been installed you will save energy and cut the cost of your heating bill.