Will ceramic tile show "damp"?
I've seen multiple posts where water behind natural tile will darken the tile.
Will basic ceramic tile like American Olean or Daltile in white show darker grey patches if the wall behind is getting wet? They seem to come and go.
This bathroom was obviously done on the super-cheap, and there are some obvious variations in color that are the tiles themselves, but I think I am starting to see irregular darker blotches.
I wouldn't be surprised if the tile was set right on green board, and the bathroom is slated for demolition this year so it's not a huge deal, but I am curious if ceramic tile can be that "leaky"?