In Reply to: the room itself ((and what it affords) and some rambling) posted by wazoo on August 14, 2010 at 06:41:51:
I'd get a LOT of dense filler and support in those floor joists! You don't want a resonant floor in that room. At the very least get some insulation in there to absorb frequencies so that it isn't acting like a hollow wooden box being struck every time a big bass note is sounded. Also wrap ducts which might be underneath so that they don't become resonant from the bass frequencies.
I would probably be up there pounding and jumping on the floor, seeing what kind of resonance and sound it emitted. If I thought it was not inert enough I'd maybe add a layer of sheet rubber over the floor and put down another entire sheet of 3/4" flooring over it to try and eliminate noise - as well as do all the insulating, etc. underneath. I'd far rather lose an inch in height and have a stable floor than vice versa. I overkilled when I built my room, and I am grateful every day that I'm in it listening.
Builders will tell you it's not necessary, but they are not experts in sound abatement or listening room construction. They often do not realize the real world implications of construction upon sound. I'm not an expert either so I got professional audio room consultation. I know one thing - if you build it thick enough the sound isn't going to get through! That's why I did 7.5" thick interior walls in my basement room. The utilities are just on the other side and are not heard. I put a double ceiling in the room, and normal household noises do not intrude. If you want a serious environment, then extra consideration has to be put into it, but it will be very worthwhile.
Maybe you know all these things already; if so, kudos and hope it goes well. Sometimes a word from a friendly source can save the day. When we moved into our current home we were ripping dark paneling from the walls of the family room and drywalling it. The day we were scheduled to close up the walls, I called the former owner to chat. I mentioned our task and she said, "Oh! If you can, insulate the wall to the bathroom. It's noisy when the toilet flushes and you hear it in the family room." Wow! What a huge tip for us who were unfamiliar with the house and wouldn't have thought of it! I rushed out and got the insulation; did the trick, no noise disturbing us in the family room.
The room looks good and I'm sure it'll become a favorite place in your home. :)
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Follow Ups
- If That Floor is Still Open Underneath... - Doug Schroeder 08:36:51 08/14/10 (2)
- dense filler is already planned - wazoo 10:13:54 08/14/10 (1)
- You Will Be Very Happy When Complete, I'm Sure... - Doug Schroeder 10:32:40 08/14/10 (0)