For homeowners ready to go beyond their expectations, GAF has introduced Timberline® UHDZ™ Shingles — the premium laminate shingle from GAF. They feature GAF’s patent-pending Dual Shadow Line for dramatic sunset shadows all day long, offer the NEW 30-year StainGuard Plus PRO™ Limited Warranty against blue-green algae discoloration, and Herbert Roofing, a GAF Master Elite® contractor, can offer 30 years of workmanship coverage when they install a qualifying GAF roofing system with Timberline® UHDZ™ shingles and register a Golden Pledge Limited Warranty.