cool stuff. where do i buy the owens corning material?
also, between these 2 choices (ceiling installation only as all walls are exterior walls)
1. double layer roxul safe & sound insulation (as opposed to single layer only), or;
2. single layer only with insulation, but double layer drywall and use the green glue in between
which would be better to reduce sound from travelling upstairs?
lastly, i was thinking of putting roxul s&s around my air returns, but heard if i wrap them in tinfoil or that reflective tape instead i will get good results at reflecting sound. my problem is i have low clearance under my returns and didnt want to reduce it further with the thickness of the insulation.
