Ice Dams [Web PLUS]

A combination of snow accumulation, warm attic temperatures, and cold outside temperatures causes a freeze-thaw cycle.

Unseen, lingering moisture in the attic or walls can lead to mildew or mold growth. ICE DAMS

Ice dams can become extremely heavy, tearing off gutters and loosening shingles. A combination of snow accumulation, warm attic temperatures,

Preventing ice dams involves maintaining a cold roof by minimizing heat escape from the home. How to Prevent Ice Dams on Your Roof - Allstate A combination of snow accumulation

Water trapped behind the ice dam backs up under shingles, causing leaks into the house, damaging insulation, walls, and ceilings.