I've been trying to find ways to sound proof the upstairs bedroom that I'm planing to turn into a mini home theater. So far, a good economical way seems to be to use "green glue" between 2 sheets of sheet rock. Use on walls, ceiling and flooring. If anyone has tried this or has a better way, then please tell about it, along as to what the cost would be per square foot or something that would be helpful in evaluating cost. Green glue costs about $180 with shipping for 12 tubes on ebay. Enough to do 4 sheets of 4x8. This would be $1.40 per sq foot + cost of 5/8" sheet rock.
There's also quietrock 545thx panels, but they cost about %5.50 per sq foot.
