Could do with some advice - DP and I have never attempted serious decorating after being in rented for 10+ years, but just bought our first house. (So can’t afford to replaster at the moment unless totally necessary!)
Most of the house looks fine to just paint over, but the two bedrooms have suffered from a little damp (exterior walls). The painted wallpaper was peeling - we pulled it off, and found that it had a polystyrene backing to help with damp, which we removed as well. It’s worth saying I know you should treat causes of damp but it’s not significant, and we’re hoping to keep on top of it by not putting furniture on those walls, heating the house well, etc. There are vents in the rooms.
Bedroom 1 was left with old peeling paint. We’ve nearly scraped that all off, and are left with fairly smooth plaster walls, with a couple of areas of light mould in the corners. We are planning to: sand any bumps, clean the walls with sugar soap, polyfilla any holes, sand over, treat the mould, clean the walls again, put damp seal where the mould was (maybe over the whole wall?) paint a layer of watered down emulsion then use bathroom paint (thinking wipeable will be good if mould returns!) to paint a couple of layers on top. Does that sound right?
Bedroom 2 had two walls painted directly onto the plaster which looks fine. The two exterior walls, once stripped of paper and polystyrene, were left as old painted walls with again some light mould in corners, and a few patches of paint have come away with the paper, so there are patches of bare plaster. It’s not really flaky enough to scrape the paint off as we have done in bedroom 1. We were thinking of maybe just treating the mould, using damp seal around the corners and windows, sanding down the edges of the paint gaps and using liner paper over the top, and then painting that - will that work? Will liner paper stick to old paint? How do we know what thickness we need?
Feel so out of my depth! 