rehearsal space's

Hey everyone, I'm a new here and I'm glad I have found this forum. I'm looking for a little help. I'm going to be opening up rehearsal space's for band to practice in Hamilton, Canada. I have an empty 4000 square foot building, (40' x 100'). The building is 2 Floors with wood Flooring My rooms are going to be 12' x 17'.. I'm also going to be dropping my ceilings down to around 8'. I'm not expecting to make every room %100 sound proof because I know that's just going to be way to much money, but I am looking to make them good enough so one band doesn't bother the band beside them, too much. I have heard from a few people that by building walls using: 5/8 drywall, insulation, 2' air gap, insulation then 5/8 drywall again Should do the trick, but I'm to sure about that. My plan is to make 8 of these rooms on the first floor then 14 on the basement floor. I have decided to go with steel studs rather then wood, so at the end of my 6 year lease, I maybe able to tear it down and take it with me, if needed. What kind of insulation would you recommend? What would be the best method when dropping the ceiling. I am currently having a new roof put on the building, and will hopefully be starting to building rooms with in 2 or 3 weeks. Iv never built anything like this before. so any suggestions would be very much appreciated. I'm a drummer not a contractor.lol. please help

to isolate the spaces, just follow the room in a room consturction techniques for each studio/rehearsal space. then pad those walls down. No need to go all studio acoustics you just dont want a highly reflective room. Unless you plan to have some cutting rooms.....

What would u recommend to pad the rooms with?

A 2x4 frame on the interior of the room and some AFB(rockwool) in that frame, cover with cloth and cool. I know wear and tear is a concern....another alterntaive is...Absorption on the ceiling (3" rockwool cloth covered) and angleingone side wall of each room example 2 rooms = 1 rectangle, you segment them with an angled wall. That will reduce the reflection anguish considerably with the absorbed ceiling..... Rockwool will work so much better than plain ole ceiling tiles...

That should help.. Any Ideas on how to sound proof a dropped ceiling? Or what material to make the dropped ceiling out off? Some one recommend using Blow Insulation (small bits of fabric that are blown into the ceiling using a hose from a large truck) Has anyone tried that? If I were to use that, then the weight of the Blow insulation might be a issue when on ceiling panels. Any suggestions?

Take a look at the Recording manual link off the main site. There are Ceiling Designs (side view of construction)