Refit cut porcelain tiles; add bevel ?

[Colour Republic]

You say that it seems to be the cut tiles at the edge that are lifting. It is very probable that the tiler laid the main floor and left the cuts until last - if he or she did then there is a possibility that the adhesive used for the cuts was mixed up differently and mixed too dry so they did not get a good bond before the adhesive went off

So it may have nothing to do with the screed - Just a thought

 

[DHTiling]

A 6 inch screed/concrete floor....2 weeks is no where near enough drying time...i think this is why they de-bonded....

Bu that is hear say now after the amount of time it has been down....

Personally i would lift the old tile and re-tile with correct prep work and NOT use pva as a primer/dust proofer..

 

[DHTiling]

i was trying to save ady money he is just patching up , you want to lay off the coffee a bit dimond i never use pva you muppet read my post

Please do not post offensive remarks towards another member.....thank you.!

 

[White Room]

quote (I shold add we thought builders did a very good job).
Sadly if they had you would'nt be lifting tiles already

 

[doug boardley]

personally Adrian, I'd bite the bullet and lift all the existing tiles, what are you gonna do if all the others start debonding and your tiles are obsolete?

 

[Adrian2009]

Thanks to all who replied.
I think the drying the time looks like it was the main problem.
Anyway, I now have a clean concrete floor in good condition, if still a bit dusty.

I have already bought the recommended adhesive: Palace Porcel Fix Fast.
And having reread the instructions on this bag it looks like i dont need to add any pva or other substance to the concrete prior to tiling, just a vacuum clean perhaps (if the floor wasnt dried out in the beginning it certainly is now.

 

[Adrian2009]

Hmmm, just seen Doug's post re lifting all the tiles. Had considered this, but decided that the main cost of work to date is in my time (which I have enjoyed to a point - new skill !) and the cost of refitting is about £160; Worst case scenario, in another 3 years have to start again, cost estimate around £750 + labour = £1,000 plus, so I think it's worth the risk. Also, must say the other tiles are really sound, so unless some sort of ever increasing de-bonding is happening I should be ok.

 

[jay]

good luck hope you learned something :8: