I painted ny bathroom (which has no vent) several yeara ago and I evidently used the wrong paint. I now have huge areas on wall and ceiling where the paint has pealed. I tried to scrape the areas that were not affected but it won't budge and I made dents in the drywall. How can I get this off, and if I can't what do I do next.
That happened to me so I ended up sanding the walls and ceilings until they were smooth. I sort of feathered the rough edges. I followed up with a bleach wash to ensure any mildew that may have been hiding was eliminated. I then went to an established, reputable paint store and had the professional at the store mix mildew deterrent in with the paints. The paint professional suggested I use a semi-gloss for the bathroom walls so I did. For the ceiling, I used a ceiling paint (flat) that was especially for bathrooms where moisture is present. I have had no problem and it has been over 2 years. The sanding really made a difference, but remember to wear eye and respiratory protection, the dust is awful, but the effort will be worth it in the end.