Quote:
Originally Posted by fabricaudio  There only two layers of alfablock between the two rooms, but there are three layers of rockwool. |
Right, my bad...
Quote:
Originally Posted by fabricaudio three layers of alfablock can make things worst |
3 or more layers of mass in a wall assembly: baaad! That was the first thing I learned since I started studying recording studio design and acoustics...
Any particular reason why you used alfablock (it's the
ytong block, isn't it?) instead of normal cement blocks or bricks?
Have you done any tests regarding the isolation you achieved with that wall assembly?
Cheers,
John