Author Topic: New basement home office/man cave/jam room  (Read 4080 times)

Bob N.

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New basement home office/man cave/jam room
« on: October 21, 2011, 03:20:40 PM »
Hi all

I am designing a entirely subgrade space for my office and my brothers want me to drum for them, but I don't want to disturb my wife who will be on the 2nd flr watching TV.  The room will be 13'x24' with a ceiling height of 7'-3". Walls are board formed concrete except next to the existing basement where its half CMU and half new wood studs.

I am going to put 2 layers of 5/8" gyp (bottom Quietrock?) on the ceiling using green glue and taping edges etc. A wood ceiling will be floated below with supports backed by Iso-sill.  The new studs will be staggered and similar to the ceiling. I'll do a heavy padded door to the old basement and good window w/ drape to the outside and will have carpet over padding throughout. I suspect I'll do some wall panels on the end where the drums are. I am reluctant to cover more than 50% of my concrete walls as they will have the look I want.

Will this be sufficient or do the walls ruin everything?

thank you

Randy S

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Re: New basement home office/man cave/jam room
« Reply #1 on: October 21, 2011, 06:10:51 PM »
You will need to worry about 2 key problems.
1) building a triple leaf system on the ceiling, which is what you purpose. let the cavity be shared from existing ceiling and new floated ceiling. Put all your mass on the new joist system at the source.
2) Decoupling the walls from the drywall when using existing structure.

Remember when playing drums and low frequency the best bang for buck is to decouple....before you start, run around the basement with a hammer and hit the framing...you will see the transmission is everywhere..if you dont decouple and then attach drywall what have you done for SPL (sound pressure levels)? answer would be nothing....

If you want freedom to play, my advise would be to build a room inside of the room or use clips and channel.

Feel free to contact me directly.
1-888-942-7723 ext 104
Randy Sieg

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888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

Bob N.

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Re: New basement home office/man cave/jam room
« Reply #2 on: October 21, 2011, 06:38:54 PM »
Thank you for the quick reply.

So having the triple leaf above and separate from the finished, good-looking ceiling won't accomplish anything? I'd rather not look at drywall, hence my comment about only soundproofing the new stud walls and the walls near the drums (with some sort of panels) which means two of the four walls would have "soundproofing" and these would be 90 degrees to each other. I can see how having the wood ceiling would reflect sound down into the room, but wouldn't the triple leaf above it prevent noise from going up into the house (my main concern)?

How about the slab?  Carpet and (thick) padding not sufficient?  I know I won't completely eliminate all of the sound, I'm just trying to get a handle on roughly how much (percentage) my proposed measures would get me.  I get the impression doing 3/4 of the surfaces might only get me a 25% reduction.

My apologies if it sounds like I'm second-guessing, I'm just trying to understand.


Bob N.

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Re: New basement home office/man cave/jam room
« Reply #3 on: October 23, 2011, 11:50:57 PM »
Hi Randy,

Thanks for the chat, quick follow up.

Does it hurt anything if I do the isolated/caulked etc triple leaf and then put a finished wood ceiling over that?

Randy S

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Re: New basement home office/man cave/jam room
« Reply #4 on: October 24, 2011, 04:33:20 PM »
The finished wood surface will not hurt too much if you can use green glue with it...it will just make the room live...at this point its about room acoustics.
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

 

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