Underlayment provides floor isolation to prevent sound transmission, structural noise transmission and impact noise. Floor underlayment is constructed of a flexible non-lead loaded solid mass barrier fusion-bonded to a ¼" 8-10 lbs. density closed-celled PVC foam decoupler.

The foam layer of this carpet underlayment decouples the layers of floor materials to prevent floor vibrations from transmitting structural or airborne sounds from noise sources.

STC: 27
Roll Size: 54" (w) x 25'
Thickness:  3/8" (1/4" Closed-Cell Foam Decoupler + 1/8" BlockAid®)
Weight:  1.25 lb. / sq. ft.
Temperature range:  -40 to 255 deg. F