Ceramic Tile Installation-- Color Variation
We hired a contractor to install our 12" x 12" ceramic tiles. As of yesterday he had the majority of tiles laid out and installed with thinset. My husband and I noticed a somewhat large area of the floor that is significantly lighter than the tiles around it which most likely resulted from a box of tiles from a different dye lot. I asked our contractor to replace them with another box of tiles that more closely matched the rest of the floor. He stated he did nothing wrong and was pulling from 3 different boxes while tiling. He said he will not replace the tiles because it will "degrade the floor strength" and that the color variation will be less noticeable once the grout is applied. Is there any truth to what he is saying or should I request that the lighter colored tiles be replaced?
He is scheduled to start grouting tomorrow morning.
Thank you so much,