What is: Ice Dam

An ice dam is a ridge of ice that forms at the edge of a roof and prevents melting snow from draining off the roof. This can lead to water backing up behind the dam and leaking into the home, causing damage to walls, ceilings, insulation, and other areas.

How does an Ice Dam form?

Ice dams form when the heat from the inside of a home causes snow on the roof to melt. The melted snow then refreezes at the roof’s edge, creating a barrier that prevents water from draining properly. As more snow melts and refreezes, the dam grows larger and can cause significant damage.

Effects of Ice Dams

The effects of ice dams can be costly and damaging. Water leaking into the home can lead to mold growth, rotting wood, and structural damage. In addition, the weight of the ice dam can put stress on the roof, leading to potential collapse.

Preventing Ice Dams

To prevent ice dams, it is important to ensure proper insulation and ventilation in the attic to maintain a consistent roof temperature. Additionally, keeping gutters clean and free of debris can help water drain properly and prevent ice dams from forming.

Removing Ice Dams

If an ice dam has already formed, it is important to safely remove it to prevent further damage. This can be done using a roof rake to carefully remove snow from the roof, or by hiring a professional to steam or melt the ice dam.

Conclusion

In conclusion, ice dams can cause significant damage to a home if not properly addressed. By understanding how ice dams form, their effects, and how to prevent and remove them, homeowners can protect their homes from costly repairs.