Looking for advice on slate floor on anhydrite screed.

[Italy]

C'mon guys, how do you think the Roman baths fellows laid stone, in the incredibly hot steam houses?

It is all about using the correct gear for the purpose.... no decoupling mats 2000 years ago.

 

[Bill]

Can't be me Antonio, Sketch Tom has hair...........

 

[Italy]

Can't be me Antonio, Sketch Tom has hair...........

It is a crown

 

[One Day]

Antonio likes his women to be skinny?

 

[Italy]

Antonio likes his women to be skinny?

is the same for me, I fit, lean, fat, high and low. important both female.

 

[WetSaw]

Non le "signore" della tangenziale di Bologna?

 

[One Day]

Not the Lord of the bologna ring road?!
What type of euphemism is this???

 

[WetSaw]

The " ladies" on the Bologna ring road aren't ladies....or even female ( so I'm reliably informed...)

 

[SJPurdy]

In the old floors the layer of sand (or multiple layers of building paper/polythene) which acted as a slip plane was underneath the solid 'screed' layer. We still have this today in a simple concrete floor it is the blinding layer of sand on top of the hardcore and/or the layer of insulation board. In a screeded construction in will be the insulation layer between the concrete and screed. The Romans as far as I know did not put in an extra 'plastic' decoupling layer between the solid base and the tiles (mosaics). All the Roman tiling I have seen (or can remember seeing) was mosaic tiling so there are lots of joints to distribute stresses amongst.
The point I am trying to make is that the uncoupling layer we use in tiling, between the tile and base is an extra layer and not instaed of the slip planes under/in the base.