QUESTIONI just notice some hairline cracks running through a couple of ceramic tiles which are adjacent to each other. There is one hollow sounding tile next to them . The hollow one not cracked yet. I shutter at the idea of replacing this floor. I’m ok with ignoring the hairline cracks because the are hardly visible unless I get on hands and knees to look at cracks. Any advice on what I can do to keep them from getting worse and more noticeable. ??? And what do you feel is going on here. All of other tiles feel solid. Do you think that that 1 hollow tile caused all this. Will I have a bigger problem down the road if I just ignore? Help — don’t know where to turn. Any advice And education truly appreciated Thank u. Jackie
ANSWERANSWER - Normally when there are hairline cracks going continuously through a number of tiles including the grout joint, it suggests that there might be a crack i the substrate below it that is telegraphing up through the tile. The hollow tile might be because there is a void under it or that it isn't bonded. If the tile wasn't bonded to the substrate you should feel it being loose and the grout surrounding it will be cracked.
There isn't much you can do about it other than replace the tile if you have matching replacements. The crack could get longer depending on what caused the crack.