When building a room within a room, is it OK to comlpetely fill the air gap with rockwool? (touching both the inner and outer partition)
Or is leaving an air gap between both partitions mandatory to acheive a good sound isolation?
Room within a room insolation: completely filling the gap?
Originally posted at johnlsayers.com, topic 20702.
Yes, you should completely fill the cavity with suitable insulation. Do not "cram" in the insulation much that you over-compress it: just put in enough to fill the cavity, without forcing it in.
- Stuart -