EcoWorx BackingEcoWorx Backing is Cradle to Cradle Certified Silver, and it is made for performance, durability, and recyclability. This backing is fully recyclable and PVC-free. The EcoWorx backing is not a heavy backing, which makes for easier installation and more efficient shipping. In addition, this backing meets the requirements for the CRI Green Label Plus certification for low indoor air emissions. Also, the EcoWorx backing has a lifetime commercial warranty.
Here is the structure of the backing on a carpet: