Advise to decouple or not - Tile Advice

[merit]

Hi all
So I've got a job to price 140 mtrs of 20mm antique style terracotta
It's on anhydrite that has been down a while ,
so gypsum based addy ,water ufh commissioned
And running at a low temp
Prepping the screed is in hand , and hygrometer going on when ufh is turned off
It's over 4 rooms in a basement so movement joints at doorways
So the question is to decouple or not
Thanks in advance

 

[thickbed]

I would definitely

 

[ttt tiling]

Without question , even specifying with porcelain now

 

[Glynn]

De-couple.

 

[Ajax123]

Uncoupling is Not necessary with terracotta but an added sort of backup if the job price will stand it.

 

[merit]

For the sake of belt and braces I'll decouple
Gypsum based to stick it down?

 

[Unused Account 1]

Ufh you have to or will eventually crack

 

[Unused Account 1]

Ufh you have to or will eventually crack