Tiles not set and falling off?

[faithhealer]

Seen a few loose 'walls' lately, all 'Tubbed addy! Worked with another tiler last week and converted him, he is now a big fan of mapei P9!

 

[Riker007]

In theory, given the situation, if left will the adhesive just set after time? Surely the grout will help sprevent them falling off, and in time, the adhesive will set and presto! U think?

 

[DHTiling]

Is the adhesive stuck to the tiles or the wall...or both..?

 

[White Room]

In theory, given the situation, if left will the adhesive just set after time? Surely the grout will help sprevent them falling off, and in time, the adhesive will set and presto! U think?

No, the addy is dispersion and needs air to dry plus some suction from at least one surface.

No, the grout will not stop moisture penetrating, it's moisture resistant not waterproof and the addy can soften with the water.

 

[Riker007]

So I should just leave it a while to set? Or just bite the bullet and re tile the half with the possibly not so good adhesive? Is PVA a good idea?

 

[White Room]

Don't pva, that could cause more grief

 

[Riker007]

Just the tiles were given the adhesive, as every other tile needed fiddling with to get them level with the next one as wall so out. So am I right in thinking that if the tiles aren't too bad, they will set naturally, or should I take them down, sand down the wall, scratch it etc then reapply tiles with powdered adhesive?

 

[faithhealer]

Just the tiles were given the adhesive, as every other tile needed fiddling with to get them level with the next one as wall so out. So am I right in thinking that if the tiles aren't too bad, they will set naturally, or should I take them down, sand down the wall, scratch it etc then reapply tiles with powdered adhesive?

answered your own question there mate

 

[beanz]

You need to know why they are coming off before you make any decisions. Have you looked at the tiles? Are they coming off with Addy and paint attached? Or just Addy? If the wall was badly out, i'm guessing a fair amount of packing out has been done? If so, addy will never dry. I've seen people just grout in that situation, but the only thing holding the tiles on is the grout, and eventually the lot will come away from the wall.
Best to just strip em now, while the addy is still wet enough to get of without breaking tiles imo.

 

[Riker007]

Umm yes when I was there one one came off it had paint on it. Bloody paint. I really don't wanna start again it took long enough....!! I'll see tmrw when I go to job, not looking forward to it one bit. Post later on when I get back, as travelling away to get to job. Typical. I hate this god damm house. May try leaving a heater in the room for a while to see if that helps them set...fingers crossed