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While more expensive than asphalt, metal roofing lasts longer and is more wind resistant. 1  Materials: May be composed of steel, aluminum, copper, or zinc alloy. 2  Steel roofs come with either a zinc coating or painted finish. 3  Copper roofs are installed unfinished and acquire a protective green patina with age.
Roof shingles are a roof covering consisting of individual overlapping elements. These elements are typically flat, rectangular shapes laid in courses from the bottom edge of the roof up, with each successive course overlapping the joints below. Shingles are made of various materials such as wood, slate, flagstone, fibre cement, metal, plastic, and composite material such as asphalt shingles.