DonW
R.I.P.
Can you find this stuff by the drywall stuff? and Don how much of a gap did you put in between each layer.
Not much help we got it from McClendons, Ive never seen it at HD or Lowes so couldnt say for sure. I would make the gap the thickness of the material. It was a long time ago but there used to be lots of sound proofing articles on the internet.
Don