There's a friendly debate going on in our condominium about the
soundproofing effectiveness of underpadding for laminate and/or
hardwood floors applied on top of existing concrete-over-plywood
Can anyone provide information on the following assertions?
1. Underpaddings of any type prevent the new floor from squeaking, but
are of little value in dampening air-borne and structural sound
2. When first installed, heavier underpaddings dampen sound better
than lighter ones. However, they compress over time, and end up being
no better than the lighter/cheaper underpaddings.
3. Heavier underpaddings are promoted by laminate/hardwood floor
sellers because they're more profitable, not because they offer
superior sound-dampening performance over the long term.
Any other information on underpaddings would also be appreciated.
Thanks in advance,