I'm in the process of finishing my basement and I'm including a full bathroom. I'm wanting to use Roxul Sound insulation for sound proofing as much as possible in the basement. I live in Winterpeg Manitoba if this helps.
My question is how best to seal or not to seal the bathroom. I'm planning on doing a tub with tile around tub as well as tiles on floor and tiles behind sink wall (possible opposite wall not sure yet).
I have heard people saying to use 6mil poly and greenboard and others say not to use it.