- Manufacturers make ceramic tile from a particular type of clay that is molded into the proper shape and then fired in a kiln or factory oven until it reaches a certain temperature and hardens completely, drying out and assuming a permanent shape. Although there are slight differences in size from tile to tile, ceramic tile in the same batch tends to be uniform. Tile that survives the firing is very durable.
- Consumers can use a standard known as LCA, or Life Cycle Assessment, to judge the lifespan of materials. It is a handy analysis used on a wide variety of tiling options, not just ceramic tile. LCA rates not only finishing materials, but also the materials beneath the tile, which in some cases may need to be replaced before the tile wears out. The LCA provides an easy way to compare different flooring options when looking for durability, and is always shown in years on the product or in the product manual.
- Manufacturers tend to say tile lasts "a lifetime" or "a century," but 50 years is an average life for tile most commonly installed in houses. Many variables can change this number. But tile's expected life compares favorably with carpet, at six years, and vinyl, at 10 years.
- At small firms, workers mold the clay by hand, and they glaze or hand-paint the tile individually. In contrast, larger factories use specific formulas and very carefully controlled conditions to make their tile. Homeowners often find that tile from small firms tends to be more fragile and often does not last as long as tile that comes from factories.
- Homeowners also should consider where the ceramic tile will be used. Wall tile will undergo less stress with the absence of weight from feet and objects, and tends to last longer. Outdoor ceramic tile can wear down quickly because of the elements. In a climate with frequent weather changes, moisture can freeze and crack outdoor tile or dissolved the tile adhesive, taking years from its life. Ceramic tile designed to be installed outdoors is unglazed.
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