The winter snow storms are starting up a little late this year but soon icicles will be everywhere. Although icicles may look attractive hanging from eaves of homes they signal a more ominous condition known as an ice dam.
Ice dams are caused by poor roof ventilation and a warm attic space, and form when melting snow on a roof runs off and refreezes at the edge of a roof. Left untreated, ice dams can cause serious damage to your home.
Heavy snowfalls bring on ice dams quickly because of the snow's insulating properties. The reason why snow is an insulator is explained along with how to prevent and repair ice dams (including the use of roof rakes) in the tutorial Ice Dams: How to Prevent & Remove Them.
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