What you need is your new wall to be totally disconnected from the existing
An easy to make cross section would be:
Original single brick
50mm air gap
Timber stud work with rockwool infill
Double skin of plasterboard.
The different masses (RW & PB) are a good combination attenuator, but the
key is there must be no hard path for the direct transmission of the sound
wave. The studwork should only be connected to the side walls, floor and
ceiling, and kept clear of the rear wall.
On Sat, 13 Sep 2003 14:22:44 +0100, a particular chimpanzee named
The problem with that is that the short section of studwork will have
to be joined to the main wall at the reveals.
John; I think your best option is to add mass to it (dense concrete
blockwork) to bring it up to the thickness of the rest of the party
wall. IANAParty Wall Act Expert, but I would have thought adding to
the party wall wouldn't require notification, but you'd be well
advised to talk to your neighbour about it. If you can hear him, he
may be able to hear you.
"You know, I'd rather see this on TV,
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