Author Topic: 20dB rated base layer  (Read 3173 times)


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20dB rated base layer
« on: April 16, 2011, 05:33:01 AM »
I have about 5 rolls of the 20 dB rated foam material. I also got this material from BASF called Styrodur C, it's essentially super dense Styrofoam used for industrial heating insulation. From what I've read on here Styrofoam seems pretty much useless by itself, but I'm wondering if I glue a layer of the 20 dB material to each side of the Styrofoam and then attach it to the wall with the double sided foam tape and then seal the seams, if it will help with the decoupling of the sound. My line of thinking is that with the 20dB material on the both sides--what ever sound that gets through that layer will kind of just bounce back and forth loosing pressure between the 2 glued outside layers. Again I'm not looking to "sound proof" just reduce the noise. Is this "sound" thinking?

Randy S

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Re: 20dB rated base layer
« Reply #1 on: April 18, 2011, 10:25:27 PM »
What is the name of your 20db material? usually its rated by STC rating or NRC rating not by db.
I would need to know in order to answer your question.