Author Topic: building a music prac room / studio HELP!  (Read 6750 times)

matty277

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building a music prac room / studio HELP!
« on: December 24, 2012, 07:24:38 AM »
Hi guys,

Im new here from Australia, i am currently in the processes of started the construction of a music room thats extended off my shed.
The room will be 7m X 4m will have a timber frame, inside it will be plastered & outside it will match the same cladding as the existing shed.
My question lies with the plaster and the sound bats, what are the best options im looking at, the builder has suggested a product called sound chek plaster by gyprock but I'm after some more advice.

Plz note a room inside a room is not an option.

Look forward to you replies thanks guys and merry xmas!

matty277

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Re: building a music prac room / studio HELP!
« Reply #1 on: December 24, 2012, 07:49:44 AM »
forgot to mention its on a slab and will be carpeted.

matty277

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Re: building a music prac room / studio HELP!
« Reply #2 on: January 08, 2013, 07:03:47 AM »
i thought this was a soundproofing forum...nearly 100 views and no reply...wow...

Randy S

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Re: building a music prac room / studio HELP!
« Reply #3 on: January 08, 2013, 04:53:05 PM »
Sorry I missed this post, Im really not familiar with the product you are referring to because I have yet to work with it.
However, when doing music rooms it is necessary to apply the basic principles in order to see a good value in reduction.

Decoupling from the structure is the most important principle and since you are not applying this principle you will entirely rely on mass law. With this being said you will need to use multiple layers in order to increase the mass of assembly. You should be trying for 8lbs or greater per sqft.
also absorption in the cavities is critical and also exposed to the sound to help absorb sound before it impacts the walls.
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supersoundproofing

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Re: building a music prac room / studio HELP!
« Reply #4 on: January 08, 2013, 09:38:54 PM »
Hi guys,

Im new here from Australia, i am currently in the processes of started the construction of a music room thats extended off my shed.
The room will be 7m X 4m will have a timber frame, inside it will be plastered & outside it will match the same cladding as the existing shed.
My question lies with the plaster and the sound bats, what are the best options im looking at, the builder has suggested a product called sound chek plaster by gyprock but I'm after some more advice.

Plz note a room inside a room is not an option.

Look forward to you replies thanks guys and merry xmas!


HArd to know what the product(s) are that you are referring to, you didn't give any details, but plaster isn't a soundproofing material, contrary to what your builder told you.

Sound batts are pretty much useless for soundproofing as the sound is usually transmitted mostly wall to wall thru the studding.  Decoupling and mass are the main elements, missing those, there's little that can be done.

So, I'd read up on methods that have proven to work: http://soundproofing.org/infopages/various-soundproofing.htm

BJ
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whatismisophonia

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Re: building a music prac room / studio HELP!
« Reply #5 on: January 09, 2013, 02:09:48 AM »
Found the product he's talking about:  http://www.gyprock.com.au/our-products/products/plasterboard/gyprock-soundchek%E2%84%A2-plasterboard.aspx

It says that:  "Gyprock Soundchek™ is machine made sheet composed of a high-density gypsum core encased in a heavy-duty linerboard".  (WTF is 'linerboard', what's it made of, how heavy is the entire thing, why is the linerboard helpful?  It says that this plasterboard is 10 to 13mm, so how much of this is the linerboard?  Is "linerboard" just a fancy way of saying "paper"?)

Also, just to clarify:  plaster/plasterboard as it's commonly referred to outside the US (drywall or sheetrock here) is an inexpensive source of mass; as such, it may as well be considered a "soundproofing" material, though it is not specifically designated as so.  since soundproofing is mostly a product of proper building construction, it's important HOW the mass is incorporated into the construction.  It isn't so much important what type of drywall you use (though type x is generally preferred), it's how well the masses that make up each wall leaf are sealed in and how disconnected from each other each leaf is, so as not to transfer vibration. 

Ultimately, what I'm trying to say is:  Adding more and more layers of drywall (adding more total mass) to both sides of the wall will amount to very little in a standard wall. However, in a decoupled wall, each layer of mass you add becomes much more effective, since there is much less structural resonance from one built-up wall leaf to the other.  Also note that same amount of insulation is more effective in a decoupled wall than it is in a standard wall, as well as from a staggered stud wall to a double stud wall.  In short, these techniques work symbiotically with one another, and are much less effective alone.

Randy S

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Re: building a music prac room / studio HELP!
« Reply #6 on: January 09, 2013, 03:59:02 PM »
Ultimately, what I'm trying to say is:  Adding more and more layers of drywall (adding more total mass) to both sides of the wall will amount to very little in a standard wall. However, in a decoupled wall, each layer of mass you add becomes much more effective, since there is much less structural resonance from one built-up wall leaf to the other.  Also note that same amount of insulation is more effective in a decoupled wall than it is in a standard wall, as well as from a staggered stud wall to a double stud wall.  In short, these techniques work symbiotically with one another, and are much less effective alone.


:) I think your getting this soundproofing down now, just remember that Mass Law still does play an efficient role as a sole principle. It is just cost prohibitive.
If it is all he has to work with than remember doubling mass only reduces by 6 dba at best, so its got to be super heavy...and you can forget about low frequency under 500htz its coming through.
 
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matty277

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Re: building a music prac room / studio HELP!
« Reply #7 on: January 12, 2013, 09:36:48 AM »
sorry i forgot that you blokes call it dry wall. Appreciate the replys

Decoupling im assuming is you meaning building a room inside a room which for me isn't an option now as the frame is already built.

I have decided to use R2.0 SoundScreen for insulation

SoundScreen Batts are manufactured from high efficiency Rockwool. SoundScreen delivers exceptional sound and thermal control when installed in internal and external stud frames as well as in ceiling and floor cavities.
SoundScreen 2.0 are water repellent batts designed to be used in internal and external wall cavities and in floor and ceilings cavities. This product has a nominal thermal value of R2.0. By installing you can reduce noise by up to 75%.

The batt size is 1160x580
The pack contains 8 batts
Each pack covers approx 5.97m2 when installed

for the plaster or dry walll i have been presented 2 options ( note i scrapped the idea of soundchek it was too expensive with no or litttle acoustical merrit)
option 1 is 2 x layers of 10mm plasterboard at$4300
option 2 is 2 x layers of 13mm plasterboard at $5300

do you think the extra $1000 is going to make it worth it for the extra 6mm of thickness?

Randy S

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Re: building a music prac room / studio HELP!
« Reply #8 on: January 15, 2013, 04:37:00 PM »
In your case yes, do you have access to resilient channel at least??
http://www.supersoundproofingsales.com/SSP-RC-1-Resilient-Channel-w_out-Iso-Tape/productinfo/09-RC1/
Randy Sieg

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matty277

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Re: building a music prac room / studio HELP!
« Reply #9 on: January 16, 2013, 09:39:36 AM »
yes to what? option 1 or 2

ill try and see if i can find some!

Randy S

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Re: building a music prac room / studio HELP!
« Reply #10 on: January 16, 2013, 04:00:06 PM »
yes to option 2, there is no such thing as overkill its only diminishing point of return.
If you can locate the channel the results will be even greater!
Randy Sieg

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