Is this grouting a big issue? Top image is undamaged example. Also the tiles can move, like there's sponge behind them, when I push them, while the undamaged tiles are rigid.
I want to know if this can cause water damage to the walls, or whether the grouting is coming away because water damage is occurring from something else. I have damp on the ceiling in my kitchen, most of it is directly underneath where these tiles are in my bathroom, but I've been told I have penetrating damp all around my property so I what's causing what. If it's the damp I should get that sorted and then the grouting, but if this is causing a leak through to my kitchen I should do this first, right?
> I have damp on the ceiling in my kitchen, most of it is directly underneath where these tiles are in my bathroom
Unless these tiles are directly inside your shower cabin and are immediately exposed to water everytime you shower, there shouldn't be enough water going through cracks in the grouting to cause damp spots on your kitchen ceiling underneath. There are probably more serious problems at play.
>but I've been told I have penetrating damp all around my property so I what's causing what
Find the points of entry of that penetrating damp into your house and then take it from there.
