QEP's Natural Cork Underlayment is an outstanding sound barrier for all types of flooring. Besides being an environmentally friendly option, cork is also a healthy choice. It's naturally hypoallergenic, as well as mold and mildew resistant. Natural Cork Underlayment reduces sound transmission and helps protect flooring from the transfer of subfloor stress cracks. It also reduces thermal transmission, making it ideal for use with radiant heat systems. QEP Natural Cork products are FloorScore Certified for healthier indoor air quality may contribute towards satisfying credits under the LEED Green Building Program.

• For use under ceramic tile, stone, marble, glued wood flooring, and floating floor systems
• Acts as a crack isolation membrane, resisting the transfer of stress cracks up to 1/8" from subfloor through to flooring surfaces
• Sound absorbing, it reduces sound transmission from the surface of the floor upward, as well as from the floor to the living space below
• Reduces thermal transmission, increasing the effectiveness of floor heating systems
• Easy to install in both glue-down and loose-lay configurations
• 74 IIC & 70 STC when installed under ceramic tile on a 6 in. cement slab with suspended ceiling, and 22 Delta sound rating
• R-Value 0.74
• Naturally antimicrobial, as well as mold & mildew resistant