Ice Dams

What is an Ice Dam?

Ice dams are the large mass of ice that collets on the lower edge of the roof or in the gutters.
Indications that ice damming may be occurring:

  • Snow is melting but there is a line of ice or snow at the eaves that is not draining
  • Formation of large icicles from the eaves
  • Water is dripping out of the soffit or gutter
  • Shingles appear worn or faded on overhangs
  • Shingles have rolling humps or dips on eave line
  • Interior walls or ceilings have visible water damage under eaves

The Four Main Causes

  • Weather
  • Heat escaping to the attic
  • Uneven room temperatures
  • Roofing underlayment that water can penetrate

How to Minimize the Chance of Ice Dams Formations
Ice dams can be prevented or minimized by:

  • Keeping gutters and downspouts clear of leaves and debris
  • Identify areas of heat loss in your attic and properly insulate
  • Ensuring attic has proper, continuous ventilation under the roof deck
  • Using a snow rake or soft broom to clear fresh snowfall from gutters