This evening I noticed a smallish hairline x shaped crack on our kitchen ceiling. Directly above which is our bathroom (alarm bells!), the area was not damp, stained or noticeably bulging, but we got some advice and used a small screwdriver to very gently poke a small hole in the ceiling to see if there was any water, which there didn’t seem to be.
Anyway I have had a look in the bathroom, and whilst I initially didn’t notice anything, I’ve now noticed under our bath mat, the grout is cracked and sunken as in pic attached, and one of the floor tiles has very slightly sunk in a corner (again pic attached). The area is directly in front of our sink so we stand here a lot.
I suppose what I’m really worried about is has the joist underneath got water damage and starting to rot, or is it just a case of regrouting properly so the tile is properly held in place.
I am going to guess when the flooring was done they didn’t use flexible grout. So imagine we will need to rip the whole damn floor up and start again.
I know you can’t always tell much from photos, but if anyone could give us an honest opinion it would be appreciated.
p.s sunken tile is bottom left and the last pic is of the crack on the kitchen ceiling directly above the tiles, after we used a screw driver to make a small hole (very zoomed in!)
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