Dura Ceramic Grout Problems
We have had this flooring in our Kitchen/Family Room for 4 years. Still looks great and have not had the problems with chipping or scratches that I have read about on this forum; even with two small kids and two dogs. The grout keeps cracking though in the main traffic areas. The store has been very good about coming out once or twice a year to regrout; no charge. The salesman who sold, measured and spec'ed the job had said after a few years that this should not be happening and that the floor should be replaced; something about it was not installed the way he had spec'ed it. He is no longer with the store. Recently, the owner came out and said the grout needed more latex. Well the cracks are back after two weeks with more latex. The cracks have been linear and parallel to the edge of the tiles and not wavy in the center of the grout line as would be shrinkage cracks (an early theory was that the grout was too wet). In teh Family room, carpet was removed and a subfloor was placed over the plywood. In the kitchen area where the majority of cracks occur, the sub floor was placed over vinyl sheet flooring in solid condition. The transition was worked out so there is no noticable change between the rooms. Any thoughts on underlying problem or more permanent solution?