Having failed to pay proper attention during earlier discussions I wonder if someone can kindly highlight the conclusions?
Early next week I hope to be laying polypipe under floor heating and will shortly thereafter be badgered by my builder for a decision on flooring so he can lay screed.
I doubt there is sufficient space to use battens or plywood and yet match existing floor levels so gluing direct seems the obvious route. This also reduces the *insulation* effect of the flooring.
Flooring seems to come in a huge range of thickness and a variety of substrate materials to say nothing of the fixing options! Entrance, hall and shower room are likely to be in 300 x 300mm ceramic tiles which, having measured some existing, are about 13mm thick: including fixing.
I suppose minor variations can be taken care of at thresholds but is sub-15mm engineered wood going to do the job?
What happens to expansion/contraction with glued fixing?
Can you still get that very thin door matting to drop in a 13mm deep well?
regards