The wallpaper is off! Removing wallpaper is messy work! Newer wallpaper is often strippable making it easy to take down, but the old stuff gets nasty. This wallpaper I just took down is thick and textured. It was easy getting a paint scraper under it and once it was loose enough to pinch, it pulled off in big pieces. Wide razor scrapers are popular for removing wallpaper, but I leave a lot of gouges in the drywall with them.
I thought this wallpaper would give me trouble, but is was easy peasy! For tough to remove wallpaper, use a wallpaper striper. It works awesome! Usually it mixes with hot water in a spray bottle. Just read the directions and fill up. Spray the wall in small sections, let it soak for few minutes and then go to town with a scraper. If it won't soak, rough up the surface with sandpaper and try again.
I ran a small boxcutter down the edge of a ruler in the corners.
Drywall paper is thick paper on the front and back of drywall. It turns brown with age and will most likely come off when you remove wallpaper, especially if the wall wasn't primed first. If drywall has had something stripped from it: wallpaper, wood paneling, or has had a lot of repairs made to it where the wall is rough, then a skim coat is a good idea. A skim coat is a thin coat of joint compound, also known as mud, that you can use to repair or smooth damaged walls. You may need a skim coat if you are repairing a crack, filling a joint, or leveling an area with an existing flat surface
You'll need to sand the drywall to get all of the loose junk off and get it ready for the skim coat. I'm using a joint compound brand that works best with a sealer/primer.
I love this stuff! It penetrates into a variety of base materials, controlling moisture and reinforcing the strength of the base.