The TCA Team was created out of necessity as calls were consuming vast amounts of time for 4 or 5 people at TCNA and CTEF who had other jobs, answering calls about tile problems not being one of them. They provide a fulltime staff which can answer questions, consult, provide quality control and field inspections or if need be, forensic failure analysis. The pictures in this article are from a few of 100's of inspections they have performed in the past year. Unfortunately, the problems remain the same as always and even more unfortunately are still 97 to 98 percent installer error. I wish I could change that, but facts are facts. I will skip the editorial on why you should continually educate yourself regardless of how many years you have been in the business. Suffice it to say, if you are doing the same thing now that you were 30 years ago, you have a problem. Everything has changed but you.
This is a very large project that is having complete bond failure. Initial complaint was bad thinset. Possible? Sure. Likely? No. Most cement-based thinsets have a shelf life of a year, some only 6 months. Mr. I been doing it for 30 years would say no lumps in the bag, use it. An educated Mr. 30 Years would realize that some of the formulations in use today can go bad without a single lump anywhere, is just plain won't bond. The reason for this is highly technical and way beyond the scope of this article, but I am working on it. Regardless of thinset used if you have any curing compound, coatings such as paint overspray, dust and dirt, or any foreign substance on the substrate to which you chose to bond, you are at risk.