Ice Dams

Are ice dams damaging your roof?

Above-average snowfall and below-average cold temperatures throughout the winter season may leave homeowners finding that the wrath of this winter has left long-term roof damage in its wake.

Icicles and Ice Dams: What You Should Know to Help Protect Your Roof

Icicles dangling from rooftops may actually signal potential ice dams in regions hit hard during winter.

What is an Ice Dam?

An ice dam is a wall of ice along the edge of the roof that forms when melting snow continually thaws over warmer portions of the roof and refreezes along the roof’s colder eaves.

Illustration of an Ice Dam

Ice Dam Illustration

The melted water that pools behind the ice dam gets trapped, creating the potential to leak into the home and cause damage to walls, ceilings, insulation, and other structural areas.

Ice Damming: Proactive and Preventive Tips

To help avoid the increased potential for ice dam damage on your home, consider following these proactive and preventive tips.


Contact a local roofing contractor who can evaluate your roof for damage and determine what your roof needs are.

This could include additional:

Start with the Owens Corning Roofing Contractor Network to find an independent roofing contractor in your area.


Ask your roofing contractor about:

^ Excludes non-Owens Corning® roofing products such as flashing, fasteners and wood decking.
† Available regionally