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Updated about 4 years ago on . Most recent reply

Spray foam as sound barrier ?
Gathering bids on new construction over/under duplex. One builder says spray foam between levels for sound barrier. Will that just transfer thunking of footsteps through joists and ceiling of lower level more?
Most Popular Reply

Spray foam insulation would be a great sound barrier. The higher the R-value, the greater the noise deadening. The two go hand-in-hand.