The answer to 'gutters ice dams' is that ice dams form when melting snow on the roof refreezes in the gutters, preventing proper drainage. This can lead to water backing up under the shingles and causing leaks and damage. Common causes include poor insulation, ventilation issues, and clogged or improperly installed gutters.
Symptoms of ice dams include icicles forming on the gutters, water stains on the interior walls and ceilings, and ice buildup on the roof edge. Solutions can include improving insulation and ventilation, clearing gutters, installing heat cables, or adding gutter guards. However, for severe cases or if the roof is difficult to access, it's best to call a professional roofing contractor to properly address the issue and prevent further damage.