Icicles may be pretty but they can tear off gutters, loosen shingles, and cause water to back up into your house. Here are prevention tips, fast fixes, and long-term repairs from the pros at TOH
The Editors of This Old HouseThis Old House online
Here's a breakdown of the conditions that lead to the formation of ice dams: First, heat collects in the attic and warms the roof, except at the eaves.
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