On Mon, 31 May 2004 09:56:25 +0100, "Lobster"
wrote:


Can anyone comment on my original Q above - how much Rockwool to use?

If you are using double plasterboard the rockwool will make no
appreciable difference. What will make a difference is making sure
every single joint in the boxing is perfectly sealed and airtight.
If you want to use a filler there is a variety of Rockwool made in
slabs rather than rolls deigned for noise insulation in stud
partition walls. That is likely to have more effect than insulating
material.

--
Peter Parry.
http://www.wpp.ltd.uk/