Weathersafe Restoration, Inc.
- Does roofing work
- Full roof replacement
- Roof repair
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Ice dams are a winter problem on both sides of the St. Croix, and the roofers below remove them for homeowners around the valley, along with clearing snow from roofs. Removal stops water backing up under the shingles and leaking into ceilings and walls this winter.
The University of Minnesota Extension describes an ice dam as a ridge of ice that forms at the edge of a roof and prevents melting snow from draining off. It puts the cause down to uneven roof temperatures: heat lost from the house melts snow higher up the roof, and the water refreezes at the colder edge.
Removal treats the symptom. The Extension's long-term fix is in the attic: make the ceiling air tight so no warm, moist air flows from the house into the attic, then consider adding ceiling or roof insulation. Ask whoever removes your ice dam whether they will look at the attic too, and be wary of anyone chipping at the ice, since the Extension warns that winter roof work risks injury and damage to the roof.
The University of Minnesota Extension says nonuniform roof surface temperatures lead to ice dams. Heat loss from the house, snow cover and outside temperatures interact: snow melts higher on the roof and the water refreezes at the colder edge.
The Extension's long-term advice is to make the ceiling air tight so warm, moist air cannot flow from the house into the attic, then consider adding ceiling or roof insulation to cut heat loss. Removal alone only fixes this winter.
The University of Minnesota Extension warns that anyone on the roof during the winter, or working on it from below, risks injury and may cause damage to the roof and house, and that roof rakes can damage roofing materials. A roofer with the right equipment is the safer choice.