Ice dams form when heat escaping through the attic floor melts snow unevenly. The cure is air sealing and even insulation in the attic plus strong eave ventilation, with ice-and-water shield as the safety net. Heat cables treat the symptom and are a last resort, not a plan.
Prefer to talk later? Leave your details and an independent local pro will call you back. No charge to you, no obligation.
Snowbelt Roofing Co is a free referral service. Submitting this form connects you with independent local contractors who provide the work.