Can You Add Insulation To Existing Walls. Existing cavity wall if it is an existing cavity wall e.g. With a small hole and a pump, you can insulate your existing walls with minimum fuss.
All brick exterior with plaster interior walls.
If you are planning a project for insulating existing walls, the standard methods of insulation will simply not work for you. Best material for walls, floor, ceiling and windows. You can blow spray foam or cellulose into the walls from these types of insulation can be bought in bags at a supply store. You can add the loose fill on your existing insulation which has been installed in.