We have actual humans available by phone. Heat cable is technical stuff and it’s great to have solid advice on how to install it for your ice dam prevention project. We are the only heat cable seller on Amazon who is a simple phone call away. Radiant Solutions Company is a direct-to-consumer manufacturer with over 25 years in the business of ice dam prevention. Unlike cheap cables, Heat Tape Pro can be overlapped during installation, can be installed on flat roofs, metal roofs and rubber roofs, will not light leaves on fire under any circumstance and operates effectively when it’s 15 degrees or colder outside.Heat Tape Pro is self-regulating, meaning it ‘asks’ for more energy as it gets colder outside and less energy when it’s warmer. The entire length of the cable is temperature sensitive such that colder areas demand more power than warmer areas. Hence the term “Self-Regulating”. Heat Tape Pro can be used for roof and gutter de-icing as well as pipe freeze protection. It’s suitable on pipes as small as ½” in diameter and can be used on both metal and plastic pipes. Be sure to order recommended installation accessories including Roof Clips and Downspout Hangers if needed.