S
sparkyspike
Our semi-detached neighbour has decided to convert his loft but the firewall is not very thick so we can hear them next door. Plus the main party wall is not particularly sound resistant either. I think it's 9" solid. Question is, is there a sound insulation which could actually work? I intend to insulate the whole party wall and dry-line over the top. I've only seen the Rocksil type insulation; is that a good one to use? I don't want to have to use anything too thick though, as we don't want to lose width on the stairs. Also, once I've chosen the insulation, would it be a problem to screw the plasterboard straight into the wall, or would that transmit the sound through the screws and into the board? I could always use rubber screws... There must be a sound insulation expert out there somewhere