What is an Ice Dam?

Ice dams are created when above-freezing attic temperatures and sunlight combine to melt snow and ice on your roof. As the runoff reaches the colder edges of your roof, it refreezes, causing a growing bank of ice. Subsequent cycles of thawing and freezing quickly create an ice dam.
The right weather condition for ice dams is usually when outside temperatures are in the low 20s for several days with several inches of snow on the roof.
While they may look festive, they’re actually a sign of one of winter’s biggest threats to your home. With nowhere to go, fresh thaws can back up under the shingles and underlayment of your roof, leak into your home, and damage attics, walls, ceilings, insulation and more.
For information on removing Ice Dams from your roof, contact Bordner today.

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