David M. Gobis, a third-generation tile setter, is the Technical Director for the
Ceramic Tile Education Foundation. A 35-year veteran of the trade, he owned and
operated a successful contracting business for many years prior to his current
position. Mr. Gobis is an author of numerous trade related articles and a
frequent speaker at industry events. He is member of the Construction
Specification Institute, International Code Council, American Concrete
Institute, National Tile Contractors Technical Committee, and a voting member
of The American National Standards for Ceramic Tile Installation and Setting
Materials (ANSI A108/118), American Society for Testing of Materials (ASTM)
C-21 Ceramic Whitewares, and Tile Council of America Installation Handbook
committees.
When ceramic tile walls or floors are the choice, many times the consumer falsely assumes that tile provides a waterproofing function. This is a very common misperception that typically remains unaddressed during the sales pitch by either seller or the buyer. The result of this assumption is sometimes only realized after substantial damage has occurred to the customer's structure -- possibly months but, more often, years later. To add insult to injury, the warranty on the work usually has long since expired and, in many cases of water damage and resulting mold issues, there is no insurance coverage.
Throughout most of my working life in this industry, I never truly understood who the Tile Council of America (TCA) was nor how their documents came about. Although over the course of the many commercial tile jobs I performed earlier in my career, I certainly got beat up a time or two for not following their technical guidelines.
Initially, I considered entitling this article, "Ceramic Tile for Geniuses and Dummies," as a play on the titles of that popular series of how-to books. However, I reconsidered when I realized that no one would admit to being a ceramic tile dummy and, therefore, I'd be discouraging readers from delving into what truly is an important topic.
Grout is, and has been, among the top tile installation-related complaints of consumers and end users for as long as I have been in the business. I have attended countless seminars on the subject, particularly on the issue of grout shading.