Ice Dam

Definition

An ice dam is an obstruction of ice that forms along the eaves of a roof, caused by the refreezing of melting snow.

Purpose

Understanding and preventing ice dams is important to avoid roof damage, water leaks, and related structural issues in buildings.

Examples of Use

• Installing proper insulation and ventilation in attics to prevent ice dams.
• Using heating cables along roof edges to melt ice formations.
• Regularly clearing snow from roofs to reduce the risk of ice dams.

Related Terms

• Eaves: The part of a roof that overhangs the walls of a building.
• Gutter: A channel at the edge of a roof for carrying off rainwater.
• Insulation: Material used to reduce the transfer of heat, sound, or electricity.

Notes

Ice dams can cause significant damage to roofs and interiors if not managed properly. Preventative measures and regular maintenance are key to avoiding these issues.