Is anti-crack matting necessary?

[mattyg]

My first bathroom didn't have Ditra Mat. When we had to redo due to cracks in the floor our 2nd attempt did.

 

[widler]

My first bathroom didn't have Ditra Mat. When we had to redo due to cracks in the floor our 2nd attempt did.

It could of failed for many a reason, what tiles, what substrate, how were they fit,who fit them, what addy, was ufh commissioned before install, was floor dry ect ect ect
Ditra is not the magic carpet of the tiling world

 

[Rookery]

I wouldn't normally put a matting under porcelain tiles over ufh though I definitely would with stone.

 

[mattyg]

It could of failed for many a reason, what tiles, what substrate, how were they fit,who fit them, what addy, was ufh commissioned before install, was floor dry ect ect ect
Ditra is not the magic carpet of the tiling world

Oh I understand that. But does it hurt to over engineer.

 

[widler]

Oh I understand that. But does it hurt to over engineer.

Yes

 

[Daz]

As an example, the Mapei and BAL decoupling membranes are only a couple of mm thick so any decent tiler will be able to make the tiles finish flush with the door threshold. I would fit the doors with sufficient contingency to allow a membrane.
Discuss options with a couple of tilers and engage the services of the one that you trust to provide the best long term floor.

Good luck.

 

[Diamond Pool Finishers]

tj1KmBff

 

[Time's Ran Out]

tj1KmBff

Thats exactly what I thought!

 

[Turkish tiler]

What type screed builder put down ?

 

[Jayney71]

Thanks, all, for your advice.

It's a liquid screed and another tiler has said there's no need to use matting with that. There seems to be some disagreement on here about whether it's necessary with porcelain tiles... I understand the "why not just use it anyway, just in case" argument but what's the point of spending more money if it's not needed?
I think we'll go with the tiler who said we don't need it. He's via trhe builder we've got on the job now rather than someone random so we have faith in him... hopefully it'll work out

Thanks again, everyone