12' X 15' Koeckritz (TM) 40oz 1/2" Thick Recycled Jute/felt Rug Pad Mohawk Industries Specifiers choice P40A 100% Recycled Felt Rug Pads are an ideal choice for use over hardwood, laminate or tile floors where you do not expect to much slippage, as these rug pads do not feature non-slip properties Mohawk Industries 40 OUNCE Specifiers choice P40A 100% Recycled Felt Rug Pads are also an excellent choice for use over concrete and radiant heat floors, as they are naturally mold, mildew, and moth resistant, and they provide excellent thermal insulation with an R-value of 2.12 Mohawk Industries 40 OUNCE Specifiers choice P40A 100% Recycled Felt Rug Pads have excellent acoustical properties, making them a great choice for use in apartments Mohawk Industries 40 OUNCE Specifiers choice P40A 100% Recycled Felt Rug Pads are environmentally-friendly: they are made in the USA of 100% recycled content; they are chemical-free; they provide excellent thermal insulation with an R-value of 2.12; they can be used over radiant heated floors; they are certified for the Carpet and Rug Institute's Green Label for air quality; and they satisfy the credit requirements for USGBC Leed Rating Systems