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Sand for Insulation
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tswiph
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#1
8th July 2009
Old 8th July 2009
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Sand for Insulation

I'm in the process of putting my new facility together and I want to know if anyone has had any experience with using sand in between the walls as a form of soundproofing. If so, can you please tell me the Pros & Cons of using it?

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8th July 2009
Old 8th July 2009
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Sand will settle over time, becoming hard as concrete. Plus, it soaks up moisture, so you'll have mold growing in your wall.
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8th July 2009
Old 8th July 2009
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Another issue is that sand that hasn't been kiln dried starts out with a lot of moisture that will rot the walls it is put in. A practice space that a friend built used sand in plastic bags to keep the moisture from getting to the wood. Worked OK, but the space was only used for a couple of years, so I don't know about long term. In my studio I have used sand in the floating drum booth floor and in the walls of an iso cabinet successfully for many years, but I dried the sand thoroughly and chose the materials around the sand carefully.
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8th July 2009
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Listen to both of these guys on the moisture issue. Sand-filled walls used to be all the rage, but mold has been an issue in all three of the builds I've known about. There are other solutions...I'd skip the sand and go on to something else.

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9th July 2009
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Benefit of sand is its mass, but as stated there are plenty of problems.
tswiph
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10th July 2009
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Okay cool!!
I most definitely appreciate all of the feedback regarding this situation. Im now in the process of looking at soundproof drapes & blankets, especially in the booth because we do track like instruments in there
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