Tech Today

Ice damming season


Moisture infiltration resulting from ice damming can be a problematic occurrence with steep-slope, water-shedding roof systems. You should be aware of the cause of ice damming-related leakage, as well as code provisions and NRCA's recommendations for implementing design considerations to prevent such leakage.

Ice dam formation

Ice damming can be experienced during the winter months in the northern- and mixed-climate U.S. regions during periods of snow and ice accumulation and melting.

Illustration of ice damming on an asphalt shingle roof system