Blistering Shingle Repair

What This Service Involves

Blisters form when trapped moisture or gases bubble up within a shingle, and a poorly ventilated Northwest attic makes them more common. When a blister ruptures, it strips away granules and leaves a bare spot that the asphalt mat cannot protect for long in constant rain. Our crews replace shingles with popped blisters and assess whether attic heat and humidity are fueling the problem. Addressing ventilation keeps new blisters from forming across the roof.

Benefits

Replaces shingles with exposed, popped blisters; Restores granule protection to bare spots; Identifies attic moisture driving blistering; Prevents new blisters through better ventilation; Preserves the roof's waterproofing layer

Our Process

1) Inspect slopes for blistered and popped shingles; 2) Remove affected shingles and check the deck; 3) Install matched replacement shingles; 4) Review attic ventilation to curb future blistering

What Affects the Cost

Number of blistered shingles; Severity of granule loss; Attic ventilation conditions; Shingle age and matchability; Roof size and access

Best Time of Year

Blistering is most noticeable after warm spells, making late summer a good time to inspect and repair affected areas.