Screed to raise floor level before tiling?

[veryfluffy]

I'm taking up an old wood block floor, and putting down tiles (probably slate) instead. The room is roughly 25 sq m.

The wood blocks are about 3.3 cm high, stuck with bitumen on concrete. The concrete I have exposed so far seems reasonably sound and dry. There is no modern DPM.

However, the slate tiles will be c. 1 cm thick, add a bit for the cement. The new floor height could probably be up to a cm lower without causing problems.

I have read the "how to" on floor screed, but what what will be the best way to increase the height by c. 10 to 15 mm at a reasonable cost? I get the feeling products have moved on a bit since that was written? I would be grateful for some recommendations of which products (brand names and suppliers!) that would be suitable. Is this really something that can be done by a first-timer?

 

[lmfittedinteriors]

I would consider using 12mm cement board, bedded on rapid set tile adhesive with something like a 10 or 12mm notched trowel. Pop over to www.tilersforum.co.uk and check their, those guys know whats what!