floor help

[guitarman09]

I'm in the process of planning out a home studio in my basement, and I can use some advice on how i should build my floor. The floors are concrete, and the height from the floor to the beginning of the floor above(top of the floor joists) is 8'. I would like to keep a comfortable height in the finished room. The room will be used for both recording and mixing music. I would like the room to be half wood(12' wide pine boards) and the other half i plan on using dri-core panels. I know that dri-core can be installed directly against the concrete, but I don't know about the wood. What is a good way to construct this floor without losing too much height? Could i just apply plywood over neoprene pads and then the pine boards, or do i need to shoot 2x4s into the concrete?

Also, since the room is in the basement and there is nothing below, should I not care about sound transmission losses or does the floor play a factor in sound reaching the floors above?

 

[bpape]

I'd just do Dri Cor on the whole floor (2 different sections for the 2 rooms) and buld my walls on top of it. Then lay the boards over the top of the Dri Cor.

To do the plywood floor, you'll be using 3/4" prior to the boards anyway. Dricor is only another 1/8" I believe

Bryan

 

[guitarman09]

OK thanks Bryan, so for the wooded side you're suggesting that the layers are dri core-plywood-boards? So I will have a bit of a step up, but that should be fine.

But how will this solution compare to floating a floor in terms of soundproofing, or do I not even need to think about soundproofing the floor considering I'm in the basement and there are no floors below?

 

[tmix]

Don't worry about sound proofing the floors, since there is nothing below you.
To be honest , most people who float floors even when they need to don't do it right and it works worse than not floating it at all.

 

[bpape]

The advantage of the DriCor with walls built on top is that it allows you to avoid the flanking of sound through the concrete slab and into the rest of the structure - or more importantly, from the slab to your walls and into your room. Sound like furnace motors, HVAC compressors, low frequency sounds from trucks/traffic outside will flank very well through a concrete slab.

Bryan