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Mitch · 05-25-2011, 11:41 AM

JoeWay,

I believe the actual R-7 you speak of is based on 1" thick, therefore, 5/16" would be R-2.2

Other than a vacuum, the highest materials I can find are listed about R-7 (which is per inch thickness).

That said, wood is not all that bad.

05-25-2011, 11:41 AM	#23
Mitch Senior Member Join Date: May 2010 Location: Dayton, Ohio Posts: 182	Re: Sound Insulation JoeWay, I believe the actual R-7 you speak of is based on 1" thick, therefore, 5/16" would be R-2.2 Other than a vacuum, the highest materials I can find are listed about R-7 (which is per inch thickness). That said, wood is not all that bad.