Ice Dams -
Ice dams can become extremely heavy, tearing off gutters and loosening shingles.
Unseen, lingering moisture in the attic or walls can lead to mildew or mold growth. ICE DAMS
Preventing ice dams involves maintaining a cold roof by minimizing heat escape from the home. How to Prevent Ice Dams on Your Roof - Allstate Ice dams can become extremely heavy, tearing off