EZ-Ridge™ XT is a Flexor SBS polymer modified asphalt hip and ridge shingle designed to complement a number of asphalt shingle roofing systems. EZ-Ridge™ XT is an easy-to-install, high-profile roof accessory that provides resilient protection to hips and ridges, a strong defence for ridge vents from weathering, and long-lasting appeal. EZ-Ridge™ XT features the Scotchgard™ Algae Resistant Shingle Protector from 3M to resist shingle discoloration due to algae growth. Malarkey roofing systems with algae resistant warranties require algae resistant hip and ridge shingles.