Author Topic: Garage sound insulation, no bass  (Read 18 times)


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Garage sound insulation, no bass
« on: Today at 03:50:50 PM »
Hi there, hope somebody can help me out with this, even though im on the other side of the pond  ;) (Netherlands)

I need to insulate my garage, as its driving the neighbors crazy.. My aquarium hobby is getting out of hand and the garage is right next to a little patio where the neighbors have their thee of whatever it is they are doing there. I've got a couple of aquarium and im selling live rock and corals. Which means i always have a couple of heaters running, and a lot of pumps. It basically sounds like niagara falls in there  ::) I have a ton of solar panels so the heating is not really an issue but the insulation would help with that as well. Main priority is sound though, i would like to make it so they cant hear a thing. The plus side is that i don't have a sub-woofer of drum set in there, so its mostly high frequency sound i think.

From what ive been reading i need mass, a separated wall from the main structure, and some sort of airy material or an air gap. I've got a good deal on some insulation nearby, so i was hoping to use that. Its 1,5 inch layer of compressed stone wool, with a board attached to it that is made of wood fibers with cement mixed in. My thinking here is that its heavier than normal insulation, and did i mention its dirt cheap?  ;D (2 bucks a m2)

Here is an example of the board im referring to, i understand its widely used in ceilings to absorb sound going to the floor above.

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Here is a simple drawing of the space im working with:

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And a couple of ideas i had about what to use and where (Dont mind the l33t paint skills  ;D ). The columns are tricky as they come in to the space and are attached to the wall, so they have a lot of mass but i cant put 10 inches in front of them because i would lose to much space. I can sacrifice about 3 of 4 inches from the columns into the room, plus the depth of the columns itself (4 inches).

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A couple of minor issues that rule out certain materials:
- I cant use drywall on the outside layer, as the saltwater will destroy it pretty quick.
- I cant get the green glue stuff over here, and shipping + import taxes would kill any sort of budget. Its still a hobby so i cant spends thousands unfortunately, i do have diy skills though, so materials are the only costs.

Hope someone can help me out with the design though, because there are a millions ways to go about this.

Randy S

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Re: Garage sound insulation, no bass
« Reply #1 on: Today at 10:59:05 PM »
 option C is the best choice and if you need more reduction just add more layers of cement board.
Just make sure your frame doesnt touch the current wall.

Randy S.
Randy Sieg

Super Soundproofing Co
Ph. 760-752-3030