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What is an ice dam?

Ice dams are usually caused by heavy snowfall and poor attic ventilation. Snow melts under the surface and accumulates as ice in the gutters. Water can't drain, leading to a backup that can damage ceilings and walls.

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Weather geeks confess their love of flakes
Article | Snoverdose? No way, says Anita Boice: "I don't think I have a breaking point with snow. I love all this snow." Boice, a Coast Guard field biologist from Woodbridge, is a rare breed of Washingtonian: She's not just excited about predictions of more snow on Monday, she's rooting for the region to b...

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