Features and Benefits: This super-heavyweight shingle offers premium performance and the pride and prestige of scalloped slate that is a perfect solution for a steeply pitched roof. Carriage House™ is built on CertainTeed’s patented design using two full-size base shingles, resulting in four full layers of shingle protection when applied. Moreover, this one-piece construction offers the applicator greater ease of installation. Most importantly, its tough fiber glass composition makes Carriage House a durable, long-lasting shingle. It is designed to resist blow off in high wind conditions up to 110 mph with normal installation and up to 130 mph with special installation. These shingles are most aesthetically appealing when used on slopes of 9 inches per foot or greater. Carriage House shingles are algae resistant and help protect against staining or discoloration caused by algae.