Tired of noise or need to isolate yourself? Find out how to provide thermal and sound insulation for a room. For this you will need glass wool on a roll, metal rails to fix on the walls and plasterboard. Start by installing metal rails on the walls. Then fill the spaces between the rails with glass wool on a roll. Once this operation is completed, drill and fix the drywall to the rails. The insulating surface is installed, you just have to cover it with wallpaper or paint to complete your decoration.