What Are Ice Dams?
An ice dam is a ridge of ice that forms at the edge of a roof and prevents melting snow (water) from draining off the roof. The water that backs up behind the dam can leak into a home and cause damage to walls, ceilings, insulation, and other areas.
Why Do They Form in New Jersey?
NJ winters often see a cycle of heavy snowfall followed by freezing and thawing temperatures. If your attic is too warm, it melts the snow on the roof. The water runs down to the colder eaves and refreezes, forming a dam.
Prevention Strategies
The key to preventing ice dams is keeping your roof cold. This means sealing air leaks in your attic, adding sufficient insulation, and ensuring your roof has proper ridge and soffit ventilation.
If you're dealing with recurring ice dams, the experts at NJ Roof Installer can evaluate your attic ventilation and install proper ice and water shields to protect your home.