The modern development of technology has improved the quality of wallpaper and adhesive adhesive and primer compositions, but even after that the wallpaper may become unusable over time. A properly prepared surface is the key to a long wallpaper service. If you plan to change the boring pattern on the walls, then you first need to get rid of the old. You can do this with warm water and sponge or roller. Swell the old wallpaper with water, after which they can easily be removed with a spatula. Also in the repair you will need a stainless pipe, you should buy it together with all building materials.
Now inspect the surface: if defects are visible, then they can be corrected with putty or aligning primer. With the help of a primer, a thin film is formed on the surface, which will significantly reduce the use of glue and increase the service life of the wallpaper. For gluing, choose a moisture -resistant glue that can withstand mold fungi. Give preference to transparent compositions, they will definitely not leave spots. Select the desired type of glue depending on the type of wallpaper, stir without lumps. The glue must be applied with a roller, both on the wallpaper itself and on the wall, and the glued stripes must be smoothed out with a rag or brush. And do not forget about the figure – sometimes, joining the strips, you also need to adjust the pattern.