The answer to 'architectural shingles ice dams' is that ice dams can form on roofs with architectural shingles, leading to water damage. Ice dams occur when heat escapes from the home and melts snow on the roof, causing water to refreeze at the roof's edge. This creates a barrier that prevents proper drainage, leading to water backing up under the shingles and leaking into the home.
Common causes of ice dams on architectural shingles include poor insulation, air leaks in the attic, and inadequate ventilation. Symptoms include icicles forming at the roof's edge, water stains on interior ceilings and walls, and damaged or missing shingles. Solutions may involve improving insulation, sealing air leaks, and installing heated cables or roof rakes to remove snow and ice. In severe cases, it's best to call a professional roofer to properly diagnose and resolve the issue.