How Blocked Attic Vents Cause Ice Dams and How to Prevent Them
Ice dams form when snow melts on a warm roof and refreezes at the cold eave, building a ridge of ice that pushes water back under the shingles. The warm roof is the real culprit, and the most common reason a roof stays warm is attic ventilation that does not work. Vents that look fine […]
