Badly cracked limestone - can I replace individually with decoupling - TilersForums.com

[Bill]

I totally agree with you.

I don’t envy you guys because to do the job PROPERLY is expensive.

Proper suitable sub floor
Correct drying technique
Quality adhesives/grouts
Decoupling membrane
Quality sealant
Skilled fitting

It becomes very apparent that the tiles are a small fraction of the actual overall cost...

This post should be pinned to the top of the page....
'I need some help'

 

[Kenco]

So does anyone think that I might be able to replace a few tiles and 'individually' decouple them to stop the subfloor crack migrating to the tile?

Anyone ever tried it?

 

[Bathfix Bob]

Yes me, in my own house I tiled the bathroom floor in 2012 and like a fool I had a hardiebacker join 20mm from a chipboard join and had a fracture across two tiles at the side of the shower tray. I lived with it for a year but everytime I walked over the crack it annoyed the hell out of me.

I smashed up the tiles carefully and got the hardie up and bonded down a piece of leftover Ditra mat and put the tiles back.

I even had some cream grout left over from 7 years ago and I thought I would try it (never in a customers house) and it worked and set perfectly.

 

[Wishiwasatoptiler]

I had two 600x600 tiles crack in a new build 6 months after install, customer wouldn't pay for mat on origanal install, took hours to lift them, taking back to base, used mapei 1mm mat and installed new tiles. No probs 6 months later. You have to be so careful near the edge of the rest of the tiles.

 

[Bathfix Bob]

I had two 600x600 tiles crack in a new build 6 months after install, customer wouldn't pay for mat on origanal install, took hours to lift them, taking back to base, used mapei 1mm mat and installed new tiles. No probs 6 months later. You have to be so careful near the edge of the rest of the tiles.

Yes, I gaffer taped the edges and usding a 7mm SDS bit I machine gunned the tiles keeping away from edges its a right painstaking slog.

 

[Wishiwasatoptiler]

Snap. Was a pain. But its a good story to tell future clients so they have mat down at install.

 

[Kenco]

I may give it a go, nowt to lose really!

 

[Kenco]

I’m planning to take up a particularly badly cracked limestone tile (600 x 300). I will remove all adhesive and try Ditra matting as I believe there is enough depth free as the adhesive was particularly thick in this area to keep the level.

What flexible adhesive & grout would you recommend (screed has wet UFH) ?

Thanks

 

[Unused Account 1]

Should of been ditra mat iin the first place

 

[Kenco]

Should of been ditra mat iin the first place

Thanks Sherlock, I know that now!