Spray polyurethane foam

[Robert Johnson]

Is the spray-on polyurethane foam insulation used for exterior wall thermal insulation much better than fiberglass and other less expensive insulation for sound insulation. I have seen some advertising claims and anecdotal stories, but no quantitative comparisons.
Bob

[Randy S]

No its not, for insulation I would recommend cotton fiber insulation.
Here's a link for your review.
http://www.soundproofing.org/infopages/natural_fiber.htm
call us for more details.