Ice damming occurs when snow on a sloped roof melts and flows under the snow until it refreezes at the eaves where the gutters are. A dam forms preventing further melting from draining properly. The water backs up, can get under the shingles and leak into the interior of the house damaging ceilings, walls, roof structure and insulation. Further damage or injury can result from falling ice dams or attempts to remove the ice dams.
If you are experiencing this problem, call in the professionals at Hamel Roofing to stop the advancement of ice dams.
The time to take preventive measures is when replacing your roof. Ask about this when you call for an estimate.