You live in Virginia, and you probably don't think too much about ice dams. But, ice dams are not unheard of around here.
Ice dams usually occur after a heavy snowfall and several days of extreme cold, can cause water to leak into houses. The best way to deal with ice dams is to prevent them from forming in the first place.
1: Ice blocks gutters
Heat rises from the house into the attic, melting snow on the roof. Melted snow trickles down into the cold gutter and freezes, creating an ice block or “dam.”
2: Trapped water seeps through roof
As the ice dam continues to enlarge, it traps water behind it. The ice and water can back up under shingles, seeping into the attic, ruining insulation, rotting wood and damaging plaster.
Preventing ice dams
- Keep the roof cold by making sure warm air is not leaking into the attic from the house. Seal plumbing vents and electrical wires with foam spray or caulking. Increase insulation in the attic.
- Clear leaves and debris from gutters before winter, which will prevent blockage.
- Attempting to remove an existing dam by chopping it or using heat can damage the home.
For more information, contact SB Roofing.