
Warm air escaping into the attic melts snow, which refreezes at the cold eaves.
The fix is insulation and ventilation, usually cheaper than a roof.
Heat cables treat the symptom. They work, and they run up your bill every winter.

Warm air escaping into the attic melts snow, which refreezes at the cold eaves.
The fix is insulation and ventilation, usually cheaper than a roof.
Heat cables treat the symptom. They work, and they run up your bill every winter.