I get a lot of e-mails from people confused about grout. When they get to the tiling stage of their bathroom or kitchen renovation they get stuck. Or they've been living in a new home for a while and ...

Q: Faucets leaked in my son-in-law’s tiled bathtub enclosure, which caused the old greenboard below them to dissolve and a few rows of tiles to come loose. I know it is virtually impossible to match ...