Preparing drywall walls for wallpapering

Preparing drywall walls for wallpapering Preparing drywall for wallpaper: step-by-step instructions

The main criterion for a successful repair is visual surface symmetry, and the main condition is perfectly smooth walls. It is possible to achieve an excellent condition of the walls by different methods, and first of all, the leveling of the walls with plasterboard can be attributed to them. But then additional preparation is required for painting or gluing wallpaper on drywall.

It is about those how to prepare drywall for wallpaper that will be discussed in the article. For convenience, you need to outline the whole process as a step-by-step instruction that will help you get acquainted with the main set of tools and with the principle of action in the field of wall preparation.

Priming drywall

The first step is to prepare the material for the putty. This is a mandatory procedure, and it helps to avoid the proximity of small harmful insects and prevents the growth of fungal colonies on the wall.

This will require:

  • Priming solution (for work inside the apartment).
  • Reservoir (to make it convenient to work with a roller).
  • Brush (with long fibers).

  • Roller.

Depending on the surface area to be treated, pour the required amount of primer into the container to make it easier to navigate, the label usually says the consumption per square meter.

Good advice! The primer can be used, and it does not matter if it is intended for indoor or outdoor work, but the primer for indoor work will cost a little less.

Further, everything is simple, and the main area of ​​the drywall sheet is treated with a roller, and hard-to-reach corners and places - with a brush. Then wait until it dries, and this usually happens much earlier than noted on the label.

Don't be afraid to apply a lot of primer, the drywall won't go bad.

Make sure the brush is clean, and if small grains of sand or stones get into the primer, the process will be complicated.


Sealing of joints

The next step is sealing joints, and this will help you:

  • Putty (finishing).
  • Phillips screwdriver (if self-tapping screws).
  • A container with wide sides (basin, bucket).

  • Reinforcing net (serpyanka).
  • Spatula (a couple of pieces).

Preparing drywall walls for wallpapering Such an operation is extremely important so that the drywall sheet will last as long as possible, because in the future you can decide to re-glue the wallpaper, or completely refuse and paint the walls. It should be noted right away that in addition to factory joints, there are usually a certain number of forced joints, which at first you can not touch at all, but this judgment is erroneous. They need to be embroidered with a knife at 45 degrees before priming, in other words, chamfering, and then proceed as with factory-type joints.

Using a wide spatula, apply the first putty layer on the gypsum board along the joint and along its entire length, and then apply the pre-finished or cut mesh in a whole piece to the joint, gradually pressing it into the solution with gentle movements of the tool. There is another method, and following it, the pre-cut mesh must be fixed to the joint by means of an adhesive composition, and putty after drying, and in this case, the preparation of the walls for wallpaper will be faster.

After that, it is required to level the joint with a new layer of putty, leveling the surface and a sheet of drywall, the layer should penetrate extremely deeply into the seam part, but there should be no bulges or other wall irregularities on top, and the wallpaper in such places will begin to bulge. The same operation should be done with the inner corners, so that after a while the wallpaper does not tear, and only after applying the mesh with another layer, be sure to press the canvas into the corner with a spatula along the entire length so that there is no "oval corners" effect. Someone uses an aluminum corner with a glued mesh for this (see below), but this will become an unnecessary expense, and such a detail worsens the symmetry of the angle and begins to protrude the wallpaper.

After drying at the seam, the putty will be pulled inward.

Preparing drywall walls for wallpaper is extremely important, because if you stick the wallpaper without additional seam processing, it will look like a hollow, but do not worry, and in this case you need to walk an additional layer of putty on grooves on all wall surfaces. There is another significant point - if you fastened the sheets to the profile with self-tapping screws, then the places where the caps enter it must be processed in advance. Self-tapping screws must be sunk deep into the walls so that they do not find fault with a spatula, and cover such places with a thin layer of the composition, otherwise gluing the wallpaper, and they will undergo tearing in wall places where the gypsum board is not reinforced.

Preparatory step for external wall corners

Providing outside corner protection:

  • Counter tentacles (aluminum type corner).

  • Building level (with a length of at least 1 meter).

Outside corners are at the greatest risk of wall chipping because drywall is not the strongest. To save the outer corners, counter-tentacles will help you - perforated corners made of plastic or aluminum, and there are options with a serpentine glued to it, ideally they should be used. With strong blows, the corners are very likely to leave the drywall intact, but you should not assume that this is a panacea, and also be careful not to allow the wall to chip! Placing the corner on drywall is the most difficult operation in preparing the walls, and you may need an assistant.

Preparing drywall walls for wallpapering With uniform strokes, it is required to apply the putty with a spatula inside the corner, and then with extreme care so that there is no fracture under the weight of the applied composition, it is required to bring it to the designated corner and glue it to drywall without fully pressing it into the wall.

Remove excess material with a putty knife and lean the level along the total length from two parts of the corner, if necessary, sink it with a level. When it dries out a little, you need to go through a new layer - covering all the holes in the corner. Pay attention that the corner does not protrude beyond the GCR. Once dry, remove any bumps and excess material along the walls that have been applied to the drywall. At the end of drying, you can proceed to the finishing step.

Plasterboard putty

After the operations performed, one more step will come - it is required to cover the entire drywall sheet with the finishing compound. This will require all the tools used before, except that one of all the tools needs to be taken a little wider, about 0.4-0. 5 meters, for filling walls. with a straight line, you need to spread a layer of putty on a large spatula, and apply it to the wall surface with it, evenly distributing the material.

Particular attention should be paid to the inner corners, first putty the wall from the corner to the other side, letting it dry a little, and only then take the second side, which will make it possible to avoid "scoring" on the already prepared side.

It is better to finish the material as soon as possible with a finishing compound and apply it to the wall surface with a thin layer. The wallpaper canvases adhere to it more tightly. At the end of the process, let the walls dry, it will take at least a day. As in the case of the primer composition, it is required to avoid the ingress of foreign objects into the material, even the smallest particles that are invisible to human vision, because when you hold the instrument, the debris will begin to leave deep grooves, exposing the gypsum board, which are difficult to deal with.

Rubbing the walls under the wallpaper cloths

Waiting for the surface to dry completely, you need to carefully examine it, pay attention to all the flaws that can spoil the glued canvases wallpaper after gluing. If such are found, then you need to arm yourself with a grater with a diamond-type mesh. All irregularities must be carefully rubbed, in particular it will concern undulating areas, and they will not be hidden by the wallpaper. As always, special attention is paid to the inner corners if there is a lot of dried material on them, and it is important to clean them very carefully, not to go to extremes and not to leave grooves with the side of the grater, and the wallpaper will not cope with them either. When working with a diamond mesh, it is imperative to protect the eyes and respiratory tract, tie a scarf on the mouth and nose, and the eyes can be saved with glasses with tight fixation to the face.

The mesh will tend to discreetly make small cuts on the hands, so that there is no discomfort, use gloves.

Priming the prepared surface for wallpapering

The preparation of drywall for wallpapering will be finished by processing with a float with a diamond mesh. According to the above operations, it is required to repeat the priming process with a brush and a roller with a long nap, and then apply the primer to the putty drywall. If you run out of primer, but have a wallpaper adhesive, you can prime it with it. This does not really matter, because the whole process of priming the putty walls is already of a different nature, at first it must perfectly adhere the wallpaper sheets to the walls.

After grouting, they are covered with fine dust and this will cause the material to flake off.

The methods outlined in the article are basic knowledge for preparing walls from drywall sheets, if you strictly follow the instructions that are set out in the article, and are not afraid to take responsibility for the repair work in your home. You will be able to do such simple operations without the involvement of masters and glue the wallpaper on well-prepared drywall. It will be very easy to glue the wallpaper after that.