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Old 11th June 2020
Here for the gear

Originally Posted by MsmithGS View Post
Interesting. Thank you for that explanation. According to: it seems like 1 layer of drywall with clips will drop it 23 db-35 db when below 150hz, while 2 layers will drop it 28 db-40 db.

Granted, they didn't have the green glue compound in there, but I'm not sure this would work as well as hoped. I'm kinda thinking I should start with 1 layer of drywall as the cost and effort of the second layer may not be worth the 5db difference and it may not be good enough regardless. Or maybe I should go a different route altogether like no clips and just the greenglue compound between 2 layers of drywall. That seems to have a similar rating.

Hmmmm...Lots to think about.

Thanks for help!!!
I highly doubt that 2 layers of drywall is going to affect drums or a metal band much at all. Your neighbors will be complaining. You'll need at least 2 sheets of 5/8 drywall with green glue on BOTH sides of a 2x6 or 2x8 framing with some sort of insulation in between, and the floor of this room within a room completely decoupled from the floor.