Applying grout is the final step in laying or adhering tile. It’s a messy process but a satisfying one: Yes, grout gives newly laid tiles a finished look. What’s more important, grout acts as a buffer ...

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Q. Help! As I watched my ceramic tile floor being grouted, it looked fantastic. But after the installer left and the floor dried, there was excess grout on many tiles and a haze over all of the tiles.