Ask a Tradesman
What is the best way to insulate a solid brick wall
My 1930s terraced home has a single brick wall under the bay window in the front bedroom. The wall is very cold and we get a lot of condensation in winter on the wall. We want to insulate the wall but are confused by all the conflicting information from experts. Are insulation boards that stick straight to the wall best or creating a cavity wall best? I'm worried about interstitial condensation within a cavity wall unless membranes are good. Do they fill the cavity or leave it empty?
Insulation attached to plaster board would definitely help, stick straight to the brick wall, condensation is usually caused by liquid particles in the air, when they hit a cold wall they liquefy, causing the so common patch of nasty dump, but if there's humidity coming from outside trough bricks then I would recommend a membrane before putting the plaster board with insulation attached to prevent moisture coming through. .
Answered 21st Nov 2014