Where are our up north experts or the ones that may deal with wood subfloors and sound deadening? Does the NWFA address this issue at all?
Sorry JM, I wish I had the answers for you.
There was a discussion quite a while ago on the subject with Gary contributing...one guy we really miss because he was always more detailed and his reasoning in that discussion still makes a lot of sense today.
sound-proofing-solid-hardwood-floor-t5115.htmlI just have a feeling a product like that would compress (because of fastening with all the nails/staples) to the point it may not be effective at all. You could look into Bostiks MVP and similar. They mention some sound absorption properties.
Cork is another idea, but after re-reading what Gary mentioned I'd have to say it may not work as you may want it to.