HAving just ripped up 1 stinky bedroom carpet & underlay there appears to be the remains of damp patches on the concrete floor.
1970's built no insulation, just what seems to be about 3" or screed on a black membrane on-top of base.Ra5ther than digging up entire ground floor and doing the job properly, would it be an option to put a laywer of polythene sheet (glued?) on top of screed before laying new underlay/carpet to reduce any damp that "may" be travelling upwards?
I am not convinced it is damp going up, more damp/condensation from when we first moved in and didn't realise there was a serious lack of ventilation until mould and significant condensation appeared on walls, furniture, clothes in cupboards etc etc.
Thoughts appreciated. Cheers