In the winter months, ice dams often form when snow on the roof of a home melts. The melted snow pools in the roof's edge and gutters, where it can freeze, ultimately blocking gutters and drains. Since water cannot flow over the ice dam, it seeps into the home under the shingles often causing extensive damage to the roof and home's interior. There are several ways to prevent this from happening, including a simple tool called an ice melt sock. Watch this video on how to use an ice melt sock.