From Prevention to Steam: Everything You Need to Know About Ice Dam Removal
Snowfall looks harmless from the street, a soft cap on roofs and dormers. Up close, after a week of freeze and thaw, that snowpack behaves like a sponge pressed against heated shingles. Meltwater slides down until it hits the cold eaves, refreezes, and stacks into a ridge. That ridge is an ice dam, and once it forms, the water that should run off the roof backs up under shingles and into the house. Wet ceiling spots appear, then peeling paint, swollen trim, and stained insu