"I have a flat roof covering a porch next to my home. Every winter snow would accumulate and eventually begin to leak in to the home. Even though we had the roof redone, the flashing just wasn't high enough to prevent leaking. After every storm, I would go out on to the roof to shovel near the house so that the snow wouldn't accumulate and begin to leak in.
The HeatTrak mat solved the problem by melting the snow in the area next to my home so that it couldn't accumulate and leak in.
It worked great.
Thank you for all your help."