Safety & Alerts
Ice Dam
Definition
A wall of ice that forms at the edge of a roof when melted snow refreezes in the gutters. Ice dams trap melting water under shingles, where it can leak through ceilings and rot the roof deck.
A wall of ice that forms at the edge of a roof when melted snow refreezes in the gutters. Ice dams trap melting water under shingles, where it can leak through ceilings and rot the roof deck.