Quote:
Originally Posted by g6civcx
I want to completely fill in the area. Is there something that can do that? Something like expanding foam or something like that.
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That's what I used to have! Doesn't work AT ALL. You can layer the Luxury Liner Pro to absorb slightly more ambient noise, but the big reduction comes from damping the vibrating metal panels, and creating a noise barrier with a single layer of something like Luxury Liner.