Sand & Cement wet room floor screed questions

[Tilegods]

You can take screed down to 30mm if needed but usually 50mm on concrete base with a few fibres thrown in for good measure and a slurry with sbr onto the base will insure a good grip.

You can take sand and cement down to 0mm . Use a 4mm notch trowel and spread tile adhesive when going 10 amd under

 

[Kevbos]

Hi All.
Got to admit, having to use S&C to form a wet room floor is a first for me. I Got a call out of the blue from a builder who I have never come across ,quite a few other things setting off alarm bells....... Painter already in an adjoining room,waste pipes at a jaunty angle,promises of we will do this,we will do that.......
but what is the minimum thickness of sand and cement required and how long would this take to dry? Just what to be sure of my facts when I ring him up.

Sand and cement tiling requires you being able to screed firstly !! And then being able to fix your tiles onto the wet screed , with what they used to do a neat cement fine slurry , it's the same as waterproof rendering , the scratch coat has to be finish coated whilst still wet , other wise the drying scratch coat becomes waterproof and finish coat does not bond !! Just a 4 part sand to 1 part cement should create a waterproof mix , but you must seal or moisten area prior to screening or rendering !! But that's old school tiling , anyone that has tried to take this tiling off floors or walls will know how good it is , but it is slow and not many can do it anymore !! It's not easy to do properly

 

[Kevbos]

Hi All.
Got to admit, having to use S&C to form a wet room floor is a first for me. I Got a call out of the blue from a builder who I have never come across ,quite a few other things setting off alarm bells....... Painter already in an adjoining room,waste pipes at a jaunty angle,promises of we will do this,we will do that.......
but what is the minimum thickness of sand and cement required and how long would this take to dry? Just what to be sure of my facts when I ring him up.

Sorry forgot to mention !!! The only reason noone does the best way of tiling anymore is because of time aspects and the changes in building methods , there is I doubt not even 1 major house builder that has used sand and cement tiling in there projects for 25 years , because of drying times , and the need for the use of solid walls or floors in the houses they build , to accommodate sand and cement tiling !! I am a victorian tiler , and I see tiling over 100 years old because of this method daily , and yet it not used nowadays !!