Ice dams are a common problem that occurs on sloped roofs during winter months. They form when snow on the roof melts and the resulting water runs down to the eaves where it freezes again. This cycle of melting and refreezing continues, causing a buildup of ice along the edge of the roof, creating a dam.
The ice dam blocks the flow of water and snow melt, causing it to back up and seep under shingles and into the home. This can lead to damage to the roof, ceilings, walls, insulation, and electrical systems.
To prevent ice dams from forming, it’s important to properly insulate and ventilate the attic space. This helps to keep the attic temperature consistently below freezing, which prevents snow on the roof from melting and refreezing. Additionally, removing snow from the roof can help to reduce the amount of water that accumulates and minimizes the risk of ice dams forming.