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Old 06-01-2020, 11:05 AM   #1
russcc
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Default Floor insulation/sound deadening

I used some 1" HVAC duct insulation on the floor of the '40 coupe behind the seat. It's been in there a year or so, and when I took it out to check something there was some mold in the stiffening valleys. What I would like to find is a breathable membrane to go between the steel floor, and insulation. They use a thin mesh like that today between the wood roof sheathing and, in my case, red cedar shingles. Any other ideas ? Thank you Fordbaners.
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Old 06-01-2020, 11:15 AM   #2
JSeery
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Default Re: Floor insulation/sound deadening

I did some research on this a few years back. Didn't really come to any conclusions, but remember reading up on Lizard Skin.
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Old 06-01-2020, 01:05 PM   #3
glennpm
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Default Re: Floor insulation/sound deadening

I had great luck with this re-cycled cotton batt with reflective foil covering. Good for heat and sound. I bought it at Home Depot.

UltraTouch
48 in. x 24 ft. Radiant Barrier with Recycled Cotton
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Old 06-01-2020, 05:37 PM   #4
flatford8
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Default Re: Floor insulation/sound deadening

I bought a roll on eBay a few years ago. Probably enough to do two vehicles for $135 IIRC. You have to be careful of whether it’s closed cell or open cell foam. I believe it’s the close cell that doesn’t hold moisture as much. Of course, a water tight cabin goes a long way on the moisture part.......Mark
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