Ceramic Tile Key Terms

Take a step in the right direction with ceramic tile key terms

There is a lot of terminology unique to the subject of ceramic tile, and certain ceramic tile key terms are necessary for anyone who works with them. The beauty, durability and versatility of ceramic tile have made it an outstanding choice for floors and more for thousands of years. Today's seemingly endless style, size and color options ensure there's something for every taste and every budget in both commercial and residential applications.

 

Ceramic

Most tiles made from clay or a clay mixture and kiln-fired are considered ceramic. They are typically classified into two groups: porcelain and non-porcelain.
Try: Anchor Bay Tile does a great job explaining exactly what ceramic tile is and how it differs from porcelain tile.

Glaze

Glaze is a liquid form of colored glass poured or sprayed onto tile, then fused and hardened at extremely high temperatures. It provides color and texture and also helps prevent staining.
Try: Read the informative facts about the glaze used on ceramic tile and the factors that can affect hardness or wear rating at Home Resource Guide.

PEI wear rating

Wear ratings developed by The Porcelain Enamel Institute (PEI) are used industry wide to help both contractors and consumers make informed decisions when purchasing ceramic tile. The rating scale -- ranging from Group I (light foot traffic) to Group V (heavy foot traffic) -- refers only to durability and does not determine tile price or quality. Some in the industry include a Group 0, which allows no foot traffic and is for decorative purposes only.
Try: Take a look at the PEI Wear Rating Table and the "wearability" associated with each group at FloorBiz, Inc.

Moisture absorption

Understanding moisture absorption and density are important when selecting tile. In general, the denser (heavier) ceramic tile is, the less moisture it is able to absorb and the stronger it is.
Try: Check out the four categories ceramic tile can fall into in the areas of moisture absorption and density with ratings developed by The American National Standards Institute at Starcraft Custom Builders.

Monocottura or bicottura

Ceramic tiles that are fired once after the glaze is put on are called monocuttura, or single fired. Ceramic tiles that are fired after the green tile is dried and then fired again after glaze is applied are called bicottura, or double fired.
Try: There's an all-you-need-to-know article about both the monocottura and the bicottura firing process at Build Direct.

Grout

Grout is the cement used to fill the space and provide support between tiles. There are many types and colors to choose from.
Try: The Tile Doctor has a very informative section on the types of grout that are available and applications for each.

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