Sand and cement fixing = proper tilers,how many on here can do it ? Remember we can use adhesive but can you fix tiles with s&c
I can , learnt it right at the begining of my career as modern adhesives were starting to come in. A skill I'm glad I paid attention too , as I've used it a handful of times to some smaller jobs , quarry tiles mainly. Turned up on one job about 15 yrs ago to tile an outside porch , the concrete sub looked like it had been laid by Mr S.Wonder . There was S&C in the back of the blokes truck so did it with that ( 8" Quarries , lovely size and sorely missed ) , came up mint . Of course its other advantage is you create falls as you go and install gulleys.
For the OP , building paper used to be put down as a form of movement layer ( mainly for larger installs like communal shower areas etc ) , never did sand myself.
Still a top method of fixing imho , in the right situation.
Brief method. Semi wet screed , trowel up some moisture/fat , sieve on neat cement , trowel over , lay on tiles , sprinkle over dry S&C and gently brush into joints ( this not only grouts the tiles but also stops them wandering too much when beating ), sprinkle on a little water , beat down with beating blocks ( 4x2x15 for 6" quarries ) ,align , clean off , grout whats left to fill when set ( sometimes joints are full depending on size of joint , so final grout may not be needed )
Works for me , been a while tho'
Diggy :0)