An ice dam is a ridge of ice that forms along the edge of a roof and blocks melting snow from draining. The trapped water can back up under the shingles and leak into walls and ceilings. Late October is the right time to prevent them, before the first snowfall.
What Causes Ice Dams
Ice dams usually start with heat escaping from the living space into the attic. That warms the roof deck, melts the snow above it, and the water refreezes when it reaches the colder edge of the roof. Poor attic insulation and weak ventilation are the most common causes.
Steps to Reduce the Risk
- Add or improve attic insulation so less heat reaches the roof deck.
- Seal air leaks around attic hatches, light fixtures, and pipe openings.
- Check attic ventilation so cold air can move along the underside of the roof.
- Keep gutters clear so meltwater has a path to drain.
Signs You Already Have a Problem
Look for water stains on top-floor ceilings, icicles that form in heavy rows along the roof edge, or damp spots near exterior walls after a thaw. These are signs to have the roof and attic looked at.
Let Us Take a Look
Neat Services Corp inspects and repairs roofs for homeowners across Queens, Brooklyn, the Bronx, and Yonkers. We can help you understand whether your attic and roof are set up for the winter ahead.
Want to avoid ice damage this winter? Contact us today for a roof inspection.
