Preparation Floor prep after flood

[AliGage]

A little help guys.

I've been asked to price 71sqm of limestone flooring.

My issue is this,
The property unfortunately flooded throughout. Now although I'm told it's all dry now I'm reluctant to tile direct to the screed/slab.
What I need is answer regarding the use of ditra in this scenario as a vapour/moisture barrier in this scenario.
Also if you feel that taping the joints would be needed.

I've done something very similar to this before with someone that was a member of the forum here. Although I didn't spec or price the job we installed ditra and kerdi tape on all the joints.

I think what I'm after is pros to support the use of ditra in relation to protecting the new floor after flooding

 

[AliGage]

131 views and not a single response!
Well this forum has changed! Lol. Where's all the old boys gone!?

Lol. I have my answers now anyway. 👍🏻

 

[Tile Marble Granite]

A little help guys.

I've been asked to price 71sqm of limestone flooring.

My issue is this,
The property unfortunately flooded throughout. Now although I'm told it's all dry now I'm reluctant to tile direct to the screed/slab.
What I need is answer regarding the use of ditra in this scenario as a vapour/moisture barrier in this scenario.
Also if you feel that taping the joints would be needed.

I've done something very similar to this before with someone that was a member of the forum here. Although I didn't spec or price the job we installed ditra and kerdi tape on all the joints.

I think what I'm after is pros to support the use of ditra in relation to protecting the new floor after flooding

Floor needs to be dry 100% then Ditra Matting installation and of course tape the joints. That's the best you can do as a tiler. Send us some pictures. Good luck!

 

[Samerlam]

First all all the floor needs too be 100% dry use a moisture tester or go buy one too test the substrate before doing anything. Then give it a good prime using a waterproofing agent like you use in wet rooms then mat and tile. What area is it the downstairs ? Is it likely to happen again? Why was it flooded ?

 

[Samerlam]

The thing is you can protect the substraight all you want if flooding happens again water will get under tiles no matter what you do. Could use an epoxy grout as that’s more waterproof.