When repairing a dwelling according to the rules, the old wallpaper must be removed. It is not difficult to remove them to remove paper wallpapers at all and after a certain time they are very easily removed. First, you need to tear the paper wallpaper in completely different places with a scraper. This is necessary so that glue or moisture can be quickly penetrated. Next, you need to apply water with an ordinary brush and leave the wallpaper for an hour for two. So that the water could not quickly drain from the walls, it is necessary to apply a little gluester to the wall.
But you should not forget about the floor. In order for the floor to be able to deteriorate on the perimeter of the floor, it is necessary to put unnecessary rags and as soon as the rag gets wet, it is necessary to squeeze it out. But of course, there are such cases when old wallpapers do not want to act in any way, and in order to remove them, you need to spend a lot of time and a bunch of energy. Basically, people are tormented with glass wallpaper and wallpaper, which are glued to the drywall surface.
Making repairs, where such old complex wallpapers can be applied by another method. You do not need to remove the wallpaper itself, but you need to put them in. But only wallpaper can be puttled, which to stay tight on the wall so that there are no bubbles or voids. Fliziline wallpaper also put down the same. Putty with a thin layer up to1 millimeter.