How to Properly Prep Damaged Walls Before You Paint

This person's issue is pretty common for those living in older homes or apartments. The paint is peeling off in a big strip, revealing an unknown brown layer underneath, and they're unsure about the right prep steps. This suggests they're confused about whether to scrape, sand, prime, or skim coat. A helpful guide (video or article) could be a go-to resource for DIY beginners dealing with similar problems. It would target homeowners and renters who want a professional-looking paint job but aren't sure how to handle underlying wall issues. The content should explain how to diagnose the problem (like old wallpaper or multiple layers of paint), list the necessary tools, and provide a step-by-step process for scraping, sanding, cleaning, and priming or skim coating to get a smooth surface.