In terms of ice dam prevention there are no truly “cheap” solutions. Homeowners must choose from the lesser of three evils: 1) Spend a lot on architectural enhancements, 2) Spend a lot on professional roof shoveling or risk a lot doing it themselves or, 3) Spend a fair amount on heat cables.

Here are the most common locations where ice dams do and do not happen on residential properties. This will help in terms of understanding where the most common heat tape installations occur so you can create a targeted approach to ice dam management

Ice dam basics. Let's look at a cross-section to discuss the physics. This diagram illustrates the movement of water as it leaks through the roof system and into the home. We also introduce the concept of the "origin zone" (the leading edge of ice dams where leaks originate)