Terracotta is a ceramic material that has been used for building construction and decorative arts since ancient times in cultures around the world. Terracotta, which literally means "baked earth," is made from natural clay, which gives it a characteristic reddish-brown colour. The colour varies slightly depending on the clay used. Terracotta is hard-baked, brownish red earthen ware, often glazed and coloured may be glazed for extra durability or to provide colour. Usually hand-made and varies in colour, texture and appearance. The colours range from natural earthtones such as grey and brownish yellow to various shades of red. It is a waterproof and very sturdy material.
When used indoors, terracotta tile floors can be left raw, but more often, terracotta is finished with a top coat sealer. Some terra-cotta tiles are purported to be waterproof. To the contrary, all raw clay tiles are like sponges when it comes to soaking up water.
Terracotta may come pre-finished or require application of various types of sealers or coatings on site to provide a wearing surface. May crumble or show wear quickly unless sealed and laid on water proof layer. Terra Cotta should never be installed in a high-traffic area, and should never be cleaned at pressures above 1100 PSI and then only if the grout is in good condition.