Hi my landlord had walls and ceilings covered with polystyrene sheets and tiles and I needed to decorate so took it all off….. walls aren’t good. So can see why he did it. Now I’m stuck making him pay for plastering of room which will up my rent I am sure. Or is there anything I can do myself that will make it still “ok” as it is going to be wallpapered in brick wallpaper as that is what son wants and a football mural on one wall. Apparently there isn’t damp. Guy come with damp meter and said wall is fine it’s the condensation that has got stuck between wall and sheets as there was 3 layers of it. There are cracks on ceiling. Or am I best just to take the rent increase and make him get it plastered.