Hi, Recently bought first home, Having pulled up laminate & floorboards on ground floor, the floor is concrete slab with wooden battens sunk-in which the boards were fixed to. The floor has clearly been damp for a long period of time and in parts (exterior wall, where there has been leaks/leaking gutters) is crumbly. The original battens laid into the floor are totally rotted and in the process of being removed.
My thoughts so far are: -Sure up the existing floor, fill any big holes etc with new cement. -Install DPM / Latex screed -PIR board and Chipboard flooring for new surface.
Particularly stuck on 2 things: -whether i should leave the channels the battens sat in empty to allow for airflow from airbricks/prevent water pressure if the floor is still damp. -Where/what layer to put the DPM/screed in - If I lay this directly over the current floor, the screed would be unsupported over the batten channels if I leave these unfilled.
Im totally new to repairing flooring/damp and mainly work with wood - I'd appreciate any thoughts on making the current floor good and product options.
NB, will post some photos of the floor as is over the next few days
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