Category: Ice Dams
Written by Dennis Crookshanks
The causes, removal and prevention of roof ice damming.
Ice dams are large areas of ice that build up near the lower edge of your roof when melting snow freezes as it contacts the cold edge of your roof and rain gutter.
The buildup of ice blocks subsequent snow melt from running off the roof and allows water to pool and then leak under your existing shingles and into your house.
Symptoms include, major icicles forming on the gutter, icicles behind the gutter, icicles hanging from the soffit vents, and leaks and stains along the interior and exterior ceiling and walls. Ice dam leaks can also ruin your roof sheathing, rot the gutter board and soffit, and loosen the gutter, shingle, and drip edge fasteners.
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