I will be expanding the upper level of my split-level home. I am going to have a 9 x 11 room to play my drums. In order to keep the noise levels to a minimum, I will install fiberglass bats in the walls. I am considering an additional layer of 1/4" styrofoam over the studs before the drywall goes on. Does anyone have any thoughts on this regarding combustibility, etc?
Thanks,
John
