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Old 03-11-2013, 11:02 AM  
drewdin
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I really like the Roxul Safe and sound, its more money but very easy to work with and can be found at the box stores. I have it all over my house

Roxul Safe and Sound



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Old 03-14-2013, 03:18 PM  
CallMeVilla
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I would take a look at an interesting drywall product that is engineered to be sound absorbing. It has a polyester layer in the middle that cuts sound transmission dramatically. You can caulk ceilings and floors if you want to get crazy ... with acoustic caulk.

http://www.homasote.com/products/440-Soundbarrier.aspx?gclid=CJjnrsKQ_bUCFelaMgodHHYADw

You need to buffer all receptacle penetrations in the walls too.



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Old 03-14-2013, 03:23 PM  
Ted White
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That appears to be a re-marketing of the age-old classic Homasote 440. Very low mass - low isolation. There may be a chewey damping layer in between, but damping two lightweight boards is minimally impactful.

I strongly suggest looking at double 5/8" Type X drywall. There's no lightweight soundproofing.

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Old 03-14-2013, 03:25 PM  
Ted White
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I take it back. It's 100% cellulose, so it's the same old H440 and no damping layer.

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Old 03-14-2013, 05:49 PM  
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Quote:
Originally Posted by Ted White View Post
I take it back. It's 100% cellulose, so it's the same old H440 and no damping layer.
So, in your opinion, is this stuff any good or not?
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Old 03-14-2013, 06:39 PM  
Ted White
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It's good on floors, however I wouldn't use it in a wall, no. For this you want mass.



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