GAF’s laminate Timberline UHDZ shingles feature the company’s LayerLock asphalt-to-asphalt seal, StrikeZone 1.81-inch-wide nailing area, and Dual Shadow Line, which creates deep, sunset shadows at all hours. GAF says these shingles are thicker and 20% heavier than its Timberline HDZ shingles and have 10% more time-release algae-fighting material than its other shingles. Available in a variety of colors, they’re eligible for GAF’s Wind-Proven Limited Wind Warranty when installed with qualifying accessories.

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