GAF Grand Sequoia AS

What This Service Involves

Grand Sequoia AS keeps the oversized, ultra-dimensional profile of the Grand Sequoia line while adding impact-resistant construction rated Class 4. That reinforcement helps the shingle resist damage from hail and falling branches, a real consideration under the tall trees common across Puget Sound. Homeowners get designer wood-shake styling and a measure of storm resilience in one product. Because of its Class 4 rating, it may support insurance premium considerations depending on the policy. It is well suited to wooded, upscale properties that want both looks and toughness.

Benefits

Ultra-dimensional wood-shake styling with deep shadow lines; Class 4 impact rating for hail and debris resistance; May qualify for insurance premium considerations; Ideal for wooded, tree-heavy Puget Sound lots; Algae-resistant granules for our damp, moss-prone climate

Our Process

1) Remove existing roofing and assess the deck for rot and moisture; 2) Apply ice-and-water shield and synthetic underlayment at vulnerable zones; 3) Install the reinforced, oversized AS shingles with staggered courses for depth; 4) Cap the ridges and seal all flashings and penetrations

What Affects the Cost

Roof area, pitch, and layout complexity; Combined designer and impact-resistant construction raises material cost; Oversized shingles affecting labor and quantities; Deck condition found at tear-off; Tree cover and storm exposure driving the upgrade

Best Time of Year

Grand Sequoia AS can be installed in any season, and scheduling before fall storms adds impact protection ahead of windy weather.