Rooftop snow can be bad news for homeowners. Melting snow that refreezes can form ice dams; frozen obstructions that block water from draining. Water collecting on roofs will often find its way into the structure, where it trickles into insulation, down wall spaces and into sheetrock, plaster and wood. “Ice dams are among the most common causes of water damage to homes,” said Peter Duncanson of ServiceMaster Restore. “Water damage itself is bad, but water leaks also can cause another significant problem – mold.”
