i'm a drummer moving to a new place and gona isolate a room in there. it's gona be 12x13ft cieling height 9ft. i found the rockwool insulation material with some sheetblock. i hear i gota have gypsum boards and an air separation. i would like any feedback on this. my main concerns are the doors and the ceiling. it's gona be hard to have a nice air separatoin up there with no risk of the lower ceiling falling. anyone can lead me to a good way to do it right? is there good faq material on doin this?