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Date:         Sun, 31 Dec 2006 13:41:29 -0800
Reply-To:     Nathaniel Poole <npoole@TELUS.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Nathaniel Poole <npoole@TELUS.NET>
Subject:      Acoustic properties of common materials
Content-type: text/plain; charset="US-ASCII"

See http://www.nrcratings.com/nrc.html.

Aside from the acrylic/cellulose slop I'm putting on as a first layer, I'm going to try to stuff the interior panels with fibreglas acoustic ceiling tile. These aren't quite as good as what is listed above, but they also provide thermal insulation. These have an NRC of 55% and Transmission coefficience of 35%. That will make a big difference. And that's before I install the cloth-covered interior surface panels. If there's still space in the "walls" I'll stuff it with more fibreglas.

Nathaniel


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