I started my apprenticeship in 1975 and all floor tiling was done monolithic, it was the tilers job to screed and fix in one operation. Wall tiling was mainly adhesive but there was the odd job where the spec required sand&cement fixing ,pit head baths etc. As far as floor screeding goes my opinion is its a tilers job as and when required, i dont particularly like doing it but i know its going to be right. These days it only ever seems to be when working to german specs ie, aldi, Lidl, BMW workshop floors etc that its required, i say this as its my era 50+ and wouldnt expect any of the younger lads to be able to do it. They were good days as there was never any shortage of work about and you were very well paid for it, these days we seem to follow so called floor screeders who go for the shovel finish, and dry liners who have been on a 3 week course. Its not good.