Ice dams on roofs in winter
Why it happens here
Warm air leaks into the attic and melts snow on the roof. The water refreezes at the eaves, creating ice dams that can damage shingles and cause leaks. This is common in Manila homes with inadequate attic insulation.
Our approach
We air-seal the attic floor and bring insulation up to R-49 or higher. We also check ventilation to keep the roof deck cold. This stops the melting and freezing cycle.