Terra cotta tiles are the other ancient roofing material for sloped roofs. Common in Mediterrean countries and subsequently in the American Southwest, terra cotta tiles originally had a very distinct look. Modern ceramic manufacturing techniques have greatly broadened the range of shapes, colors and styles available for residential and commercial roofs.

Terra cotta tiles are produced in both traditional and very high tech manufacturing processes. Here are some manufacturing firms.

• US Tile produces tiles in a range of shapes, mostly in traditional terra cotta colors but some in shapes resembling shakes and other products and in other colors as well. Corona, California.

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