tiles all come loose

[Chivalry]

Hi.. a few months ago a friend and i tiled my kitchen.. he is no expert but is quite handy at DIY ... at least far better than me... but over the last few months pretty much every tile has started to move... i would estimate about 70% of the grouting has cracked and come loose..... and also 70-80% of the tiles move and wobble when u walk on them ;0(
I dont know what was used to lay them... but they went onto like a green coated MDF / chipboard type stuff which was under the carpet when we lifted it
Sorry thats all the info i have... can anyone suggest best course of action? getting a little desperate as baby due in 6 months and really gotta try and get the kitchen finished by then ... many thanks...

[gcol]

Welcome to the forum.
You don't tile on chipboard full stop. Your tiles need to come up. You need to over-board the chipboard with WBP ply and retile using a powdered flexible adhesive and grout.
Have a look at the sticky in the tiling section for more detail.

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If I'm curt with you it's because time is a factor. The Wolf.

[barch]

In my limited experience of tiling floors, if you dont seal the floor first, then on a surface like chipboard the tiles are definitely going to start working their way loose. I've tiled onto chipboard before too, having first sealed the surface with PVA glue. I've done this twice without an issue, in shower rooms both times. Perhaps I've been lucky!

[gcol]

barch wrote:

In my limited experience of tiling floors, if you dont seal the floor first, then on a surface like chipboard the tiles are definitely going to start working their way loose. I've tiled onto chipboard before too, having first sealed the surface with PVA glue. I've done this twice without an issue, in shower rooms both times. Perhaps I've been lucky!

You have.

__________________
If I'm curt with you it's because time is a factor. The Wolf.