What is Ice Damming?

2/5/2018 (Permalink)

An ice dam is an ice build-up on the eaves of sloped roofs of heated buildings that results from melting snow under a snow pack reaching the eave and freezing there. Freezing at the eave impedes the drainage of meltwater, which adds to the ice dam and causes backup of the meltwater in a manner, which may cause water leakage into the roof and consequent damage to the building and its contents if the water leaks through the roof.

Ice dams are a common sight in the Northeast. We've handled several claims this past month stemming from ice damming. What we've found is the flatter the pitch of the roof, the easier it is for an ice dam to get a grip. Gutters at the eaves can also trap snow and ice. If snow and ice build up high enough in the gutter, it can provide a foundation for an ice dam.

Stay tuned for our next blog, where we’ll tell you how to prevent these dangerous ice dams.