As per the title, Ive taken a (non-supporting wall out) to give a bigger kitchen, which has left me with a floor with a (pretty even) floorboards on joists section, and another (also even) concrete section, which sits around 4mm higher. In preparation for tiling, I plan to put down backer boards on the (lower) floorboard section (which will then make it proud of the concrete), then latex the concrete to bring it level. The net result would be that I'd go from 50-50 concrete+floorboards with different heights, to 50-50 backer boards + latex with matching heights. I'd then be tiling on top. How does this sound as an approach? Thank you all!
Sounds good........but you will need an expansion gap between the concrete/cement board joint. Similar to this http://www.wallsandfloors.co.uk/cat...-10mm/14791/?gclid=cjoysjuihcucfrqataod7icahq Or you could leave the joint un-grouted and fill the gap using matching silicon. You DO need one though......or they WILL crack along the joint.