John Sayers' Recording Studio Design Forum

Is that something like fiber-cement board? Comes in panels the same size as drywall, but twice as heavy, and is a grayish color? If so, that will work very well. It is much higher density than drywall (probably around double), but it is a bot more expensive. It's a good choice, though, since you can get away with thinner panels for the same amount of isolation (or the same thickness, for more isolation!).

Probably, but not necessarily. Depends on the slope of the roof, and other things. But if the roof slope is not too steep, and the overall room shape is still approximately rectangular, then you can use the average dimensions to get a rough idea of modal behavior. The axials for width and length will still be accurate, but the axials for height, plus the tangentials and obliques will not be so accurate.

That will blow your isolation plans out of the water! If all you have up there is the roof itself, then your total isolation for the entire room, will probably be somewhere in the mid 20's. Maybe around 25 dB, if you are lucky. That's not much at all. Less than a normal house wall. That depends on the roof itself, of course: it might be a bit higher or a lot lower, depending on how it is built.

- Stuart -

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I want this studio to amaze people. "That'll do" doesn't amaze people.

Yep, that's the stuff. Great to hear it's a good choice. Not the nicest looking finish but can be painted or rendered. Also pretty affordable here, and easy to hang.



Interesting stuff.
As mentioned previously, not so concerned about isolation (honest!). I think we will give it a try with ceiling trusses in place, but no ceiling, and if the acoustical performance suffers I can fit a ceiling in later.

Thanks again.

Skye

I've answered your questions inline, to the best of my abilities.



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