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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.
There are many different types of roofs out there: 1. Flat roof. Flat roof is the simplest and most economical type of roof, characteristic of modern architecture and frequently used in warm weather conditions. It is well known all over the world and each country has its own tradition about it.