Discuss Cracks in screed, how to repair? in the Canada Tile Advice area at TilersForums.com.

C

clipboard2008

Hi

I’ve just removed a stone floor for a client. I didn’t tile it originally.
The stone tiles had 3 sizeable cracks in it and the floor has a wet ufh system. We couldn’t work out why the tiles had cracked apart from guessing that it was due to cracks in the screed below and not using a decoupling membrane.

We removed the tiles today and found out that no decoupling membrane was used and there are more cracks in the floor than in the areas where it had cracked the tiles. These cracks have almost created a grid type pattern in the floor. The 2x smallest squares are approx 1.5m2 the whole floor is approx 25m2
By the patio doors a small area has broken away and when you stand on it you can feel it flex on the celotex below

The screed is only 45mm thick!

Can I continue with the ditra mat over these cracks and be sure that I will have no more issues?

Or do I use a different process?

TIA
 

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Cracks in screed, how to repair?
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