Cupping Shingle Repair

What This Service Involves

Cupping causes the center of a shingle to sink while the edges rise, and it frequently signals a hot, poorly ventilated attic beneath a damp Northwest roof. The distorted shape holds water and debris, which speeds granule loss and invites moss along the low points. Our crews replace cupped shingles and dig into the ventilation and moisture conditions that warped them. Solving the underlying attic problem protects the new shingles from the same fate.

Benefits

Replaces distorted, water-holding shingles; Uncovers attic heat and moisture problems; Reduces granule loss and moss footholds; Protects new shingles by fixing root causes; Restores a uniform roof surface

Our Process

1) Identify cupped shingles and note the pattern; 2) Remove affected shingles and inspect below; 3) Install matched replacement shingles; 4) Evaluate and correct attic ventilation and moisture

What Affects the Cost

Number of cupped shingles; Severity of attic ventilation problems; Extent of any moss or debris buildup; Age and availability of matching shingles; Roof accessibility and pitch

Best Time of Year

Cupping is easiest to correct in dry weather, and pairing repairs with a summer ventilation review yields the best results.