Roofing tiles can be ceramic (e.g., clay fired at a high temperature) or fabricated from cement concrete. Some of the lighter types use fibers (e.g., cellulose) added for strength. The color of a tile may be dispersed throughout, or it may be applied in the form of a coating. Perhaps the most venerable type of roof tile is the Spanish style red barrel tile made from fired clay. The modern version of this tile is sometimes a cement tile with a suitable coating. In either case, the red color is due to the ubiquitous iron oxide material, hematite.Advantages of tile include fire safety, as they are non-combustible, and durability.