Ice Dams/Snow Retention

An ice dam is a patch of ice that forms at the edge or valley of a roof and prevents melting snow from draining off the roof. The water that backs up behind the dam can leak into a home and cause damage to the roofing system and substrate as well as interior walls, ceilings, insulation, and other areas.  Ice dams form by melting snow running down a roof and freezing again before they hit the gutter and downspouts.  The snow on a roof surface that is above 32°F will melt. As water flows down the roof it reaches the portion of the roof that is below 32°F (outside the warm wall of the homes) and freezes.

From the University of Minneapolis

Protect your family and property during winter weather with a snow retention system.  They are used to prevent snow and ice sliding off of roofs that come from changes in temperature or weather.

Beautiful snow clips to keep you safe from sliding snow

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