What are ice dams and how to prevent them!

Licensed Home Inspector State of New HampshireAn ice dam is a ridge of ice that forms at the edge of a roof, preventing melting snow from draining properly. It occurs when the upper, warmer part of the roof melts snow, and the lower, colder section causes the water to refreeze at the roof’s edge.

To prevent ice dams, consider:

1. **Proper insulation:** Ensure your attic is well-insulated to minimize heat transfer from your living space to the roof.

2. **Adequate ventilation:** Good attic ventilation helps maintain consistent temperatures, preventing snow from melting and refreezing.

3. **Sealing gaps:** Seal any openings, gaps, or leaks in your attic to minimize warm air entering.

4. **Snow removal:** Safely remove accumulated snow from your roof using a roof rake to reduce the risk of ice dam formation.

5. **Heated cables:** Installing electric cables along the roof edge can help melt ice and create channels for water to drain.

By addressing these factors, you can reduce the risk of ice dams and potential damage to your roof and home.

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