This is a standard 10mm thick PU foam carpet underlay designed to offer extra protection and support for your carpets, maintaining quality for longer. It offers sound reduction up to 38dB making your carpets quieter to walk across as well as providing thermal insulation for extra warmth with a TOG rating of 2.47. The bottom line is, this underlay will prevent you from having to replace your carpets as often! Tip: Use the Wilsons Carpet Underlay Bonding Tape to join the seams of this underlay during installation. Available here at B&Q