The kit produces an excellent thermal barrier plus an air moisture and sound barrier.
Open cell spray foam insulation soundproofing.
Foam it green 1202 class 1 open cell spray foam kit is a diy product that allows you to add acoustic value to any wall ceiling or floor.
Spray foam insulation cost open cell polyurethane spray foam.
It is also less temperature sensitive than the open cell spray.
However i prefer a 1 inch thick square foot price.
Why open cell oc spray foam is best for sound attenuation.
The cost of the material depends on where you live and if you plan to install it or have the pros.
The sound blocking ability can be compromised over time.
First spray foam has the best stc rating of all the options.
Some places give the cost per board foot and others by square foot at r 1.
However in real construction a batt would be cut to fit around utilities and boxes leaving sound transfer cracks.
Open or closed cell foam is a common consideration but not appropriate for soundproofing.
However to help you find.
For damping the resonance in the air cavity we prefer medium density fiberglass cellulose cotton mineral fiber or polyester.
It ties with rock wool batts for an stc of 50 in a laboratory test environment.
All of these are open and airy enough to adequately interact with the sound waves in the sealed wall or ceiling cavity.