TECH-MAT™ Twin conductor series resistance cable mat for floor warming and heating. Installs under tiles, marble, concrete, hardwood and laminate. Suitable for any new construction or renovation project. Complete with adhesive backing for ease of installation. 20 years warranty provides worry free warmth and comfort. Mat backing can be cut between cables to create desired shape. Safe, silent, economical and efficient operation. The construction adds little more than 1/8 inch to floor. Operating temperature of -15 to 80°C.