Midwest Padding's QuietWalk laminate floor underlayment is designed to smooth out subfloor imperfections while quieting impact sound and floor-to-ceiling noise. Not only does it dampen ambient sound in the room in which it's installed, but also inhibits sound from traveling into the room below, the company says.

In addition, the underlayment's absorbing action and attached vapor barrier provides moisture protection. Backed by a limited lifetime warranty, QuietWalk is available in 100-square-foot do-it-yourself-sized rolls and 360-square-foot contractor-sized rolls.