Create high performance sound control with Rubber or Rubber and Cork Underlayment. These recycled rubber products provide superior impact noise and foot step sound reduction. Better sound reduction than many foam products and superior compression recovery performance. Designed to meet or exceed building code and or developer or condominium association requirements. Both products are designed for floating laminate, hardwood, bamboo, or cork flooring products. The High Performance Recycled Rubber and Cork Sound Control Underlayment may also be used with ceramic and natural stone flooring.Superior IIC (Impact Isolation Class) performance that meets California sound control requirements Independently tested for IIC (see available data sheets for specific testing results) Environmentally friendly, made from recycled rubber or recycled rubber and renewable cork Qualifies for credit points under LEEDTM Green Building Rating System