soundboard under or over drywall?

  • Thread starter Thread starter freakkguitarist
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freakkguitarist

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should i screw thre soundboard to the studs, then the drywall to that, or the other way around forthe inside wall for my drum room?
 
You should put the soundboard on the studs, both sides, then the gypsum board to the soundboard.

Now the interesting thing is not to screw at all but to glue. Here is an interesting article, ironically it comes from the maker of a competing product!

http://www.asc-soundproof.com/wd-articles-soundboard.htm

however when looking at their talk about installation hassles of soundboard/gypboard I realized that there might be an easier way:

Glue the soundboard to the gypsum board, then when it has set glue the combined gypsum/wallboard to the studs, nailing only enough to hold it in place while the glue cures.
 
No ..No ...No.. Sound Stop is a fire hazard......always sandwitch sound stop between FC-fire code 5/8GWB

Acoustech
 
Hello Jack, my civil side has a question :D If you don't mind. As part of your professional services do you specify commercial facilitys for flame retardant application, or is that part of the architectural specs?
fitZ
 
freakkguitarist said:
should i screw thre soundboard to the studs, then the drywall to that, or the other way around forthe inside wall for my drum room?
Click to expand...

Actually you shouldn't waste your money on soundboard.

The big issue with drums is low frequency - and your best isolation is mass.

Additional layers of drywall in place of soundboard will get the job done.

I have seen no studies to support the use of soundboard.

Good luck,

Rod
 
Hi Rick,
All composites we use in facility design and construction have to meet national fire code standards. As a designer, I would never intentionally introduce a product that would put someone in jeopardy. Consider for instance all of the extruded acoustical foam product in the marketplace...for DYI. 99% of this stuff is deadly
 
Sorry Rick......that segment of e-mail just went on its own....As I was saying
To all of you ..if you are going to be installing these products....please look at the ASTM ratings......if not , call or e-mail the Co. you are going to purchase from. They will inform you of the fire code required and status in regards to standards and practice.
When this stuff burns...it is toxic..and will kill you in less than 2 minutes in an enclosed room. Just check out what took place in R.I a few years back.
Great question Rick........hope all take warning.

Jack Piercy
Acoustech
 
As a designer, I would never intentionally introduce a product that would put someone in jeopardy
Click to expand...

I must assume from this the answer to my question is yes :D Although it is still kind of vague. As a designer/detailer for a large high end store fixture manufacturer, I routinely had to deal with Macys specifications for wall applied FABRICS that are NOT fire resistant from the manufacturer. The architectural specs require application of a commercial fire retardant to bulk fabrics prior to installation, which we sent to various companys to have done. I was just wondering if you specify fabrics not normally used in acoustical wall coverings, and how you delt with this. I hadn't considered foam products as I was under the impression, as I would guess a lot of people here are too, that these products were manufactured to meet a fire retardant spec. Thanks for the reply Jack. BTW I too am interested in your help. You caught me off guard in the other thread.
fitZ
 
RICK FITZPATRICK said:
I was under the impression, as I would guess a lot of people here are too, that these products were manufactured to meet a fire retardant spec. Thanks for the reply Jack. BTW I too am interested in your help. You caught me off guard in the other thread.
fitZ
Click to expand...
Not all foam products are manufactured for fire resistance because not all applications of foam require it. For example eggcrate foam used as packaging cushioning has no particular need or requirement to be flame rated. Some sometimes folks go to a craft store and see eggcrate foam and say 'woah, this stuff is WAY cheaper than the name brand stuff...I can buy twice as much' As a general rule if it doesn't say that it is flame retardant it isn't.

On the other hand the spray-on material to fireproof fabrics is not hard to get or to apply. You have to have it done by a certified applier and tested in order get a certificate, but if this is a DIY project you might feel safe enough just getting the material, applying the recommended coverage yourself (all it takes for the water based kind is a garden sprayer) and conducting your own flame test.

http://www.firetect.com/safe-t-guard.htm
 
Acoustech said:
No ..No ...No.. Sound Stop is a fire hazard......always sandwitch sound stop between FC-fire code 5/8GWB

Acoustech
Click to expand...
A lot of different materials call themselves 'sound board'. Certainly Homasote 440 Sound Barrier does not require this from their published directions. They recommend nailing or gluing as an interlayer between stud and gypboard.

I guess the real lesson is to be sure of what you are installing and check the manufacturer's directions about how to install it. If you can't find out about what you are installing then don't.
 
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