02/17/2026
Ice dams form when heat from your home escapes into the attic and warms the roof. This causes snow on the roof to melt—even when outdoor temperatures are below freezing.
Here’s how it happens step by step:
Snow builds up on your roof.
Heat escapes from your attic, warming the roof surface.
Snow melts and runs down toward the edge of the roof.
The roof edge is colder (since it extends past the house and isn’t warmed from below).
The melted water refreezes at the edge, forming a ridge of ice.
As more snow melts, water backs up behind the ice ridge and can seep under shingles—leading to leaks, stains, insulation damage, mold, and interior water damage.
Ice dams are not just a roof problem—they’re often a sign of insulation or ventilation issues inside the home.
Contact us for solutions!!
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