Ditra & Rapid Set?

[beanz]

There are heating pipes, for the rads, running down the centre of the hall, but it was purely for the movement. What would you have suggested? Not sure what you mean by a physical movement joint!?! If you mean an expansion gap/trim, the customer wasn't going to go for that. 😉

 

[One Day]

Can't do any harm I suppose then. I just see Ditra used a lot where expansion and movement joints should be and where inadequate or no floor strengthening has been done.
It gets used as a "cover-all" solution sometimes.
A brilliant product - don't get me wrong, and I'd choose it over the poor-relation competitors anyday.

Example - I've seen a number of floors like this - 1/2 concrete 1/2 timber where the movement was so great even Ditra failed to cope.
A physical expansion joint was the only solution but as you say - customers won't go for it and if we insist, then the job goes to someone else!

 

[beanz]

The crack in the screed wasn't wide, so im sure it'll be fine. I've yet to do a domestic job where they'd accept an expansion joint, even on long runs. :-/

 

[SR Tiling]

Yes no problem

 

[Jeff the tiler]

I have always used rapid set with out any issues, and with Doug reference standard set.