The answer to 'roof installation ice dam' is that ice dams are a common problem that can occur after a new roof is installed, especially in colder climates. Ice dams form when snow on the roof melts and refreezes at the roof's edge, creating a barrier that prevents proper drainage. This can lead to water backing up under the shingles and causing leaks and damage inside the home.
Common causes of ice dams after a new roof installation include poor insulation, inadequate ventilation, and improper roof pitch or overhang. Symptoms include icicles forming at the roof's edge, water stains on ceilings and walls, and mold or mildew growth. Solutions may involve improving insulation, adding ventilation, or installing a heated cable system to melt the ice dam. However, for severe ice dam issues or if the root cause is unclear, it's best to call in a professional roofing contractor to inspect and recommend the appropriate remedy.