What can a clean rain gutter still do in winter at high latitudes?

Build up an ice dam.

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  1. Build up an ice dam ✔
  2. Stop all snow
  3. Heat the roof

Why: Even clean gutters can form ice dams that force melt water into roofing and cause leaks.

Huh, didn't know that: Even clean gutters can form ice dams that force melt water into roofing and cause leaks.

The dad joke
An ice dam is a cold fact of winter
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References

Answer: Build up an ice dam. Even clean gutters can form ice dams that force melt water into roofing and cause leaks.

  1. Home repair en.wikipedia.org/wiki/Home_repair
    even a clean rain gutter can suddenly build up an ice dam in winter
    Checked 2026-11-07.

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