Grayhawk Synthetic Underlayment – All Sizes

Unique water-shedding and special weaving technologies provide extraordinary walking traction, wet or dry. Gray Hawk provides legendary traction. Professional Roofers can tell the difference!

Key Features

Suitable for all asphalt shingle and metal steep-sloped roofs. A superior substitute for any application calling for asphalt saturated underlayment (#15 or #30 felt)

Deck side slip-resistant coating

Strong and durable

Impervious to mold

Lays flat and stays flat (will not buckle when wet)

Will not tear easily, even in high wind conditions

Secondary water barrier