251 Vista® and 252 Vista® AR shingles are laminated architectural shingles fortified with sustainable NEX® polymer modified asphalt technology for enhanced granule adhesion and increased weather protection. The Vista® shingle line also features the patented, nailing accuracy design of The Zone® which dramatically improves correct fastener placement. Vista® Sienna Blend and Silverwood shingles are CRRC-listed and can be used to comply with California Energy Code Title 24 Part 6, while Vista® Silverwood shingles can also be used to comply with Los Angeles County, California Title 31 Cool Roof Requirements. Vista® AR is algae-resistant and carries that coverage for 15 years. Please consult Malarkey's Technical Services Department for approval of roof systems.