The roof pitch is determined by the types of tile. Each of these materials has its cost, maintenance and labor specifications, as well as its performance for building thermal comfort. Usually, the structure consists of wooden or metallic pieces, while the tiles have a variety of types, which can be fiber cement, ceramic, aluminum, concrete, among others. The conventional pitched roof is basically composed of two elements, the frame and the tiles. Save this picture! Pavilhão para Estacionamento de Bicicletas / WAW architects.