Preparation of walls under the tile: Solutions for the bathroom

If you decide to punish tile in the bathroom, then you need to start not with the purchase of the latter, but with preliminary preparation of walls. The tile pasted on the untreated surface of the walls or the floor will not hold for a long time. Over time, he will start falling off or covered with small cobweb crackers. Today, many for one reason or another prefer to make repairs in the apartment on their own, especially since construction stores are moving with a variety of material, and video tutorials will help to solve any task. Starting repair without resorting to the help of specialists, do not forget that repair in the bathroom requires a special approach, since it is here as anywhere “live” moisture and dampness.


Contemporary glue for the tile allows you to punish it almost on any surface, even on paint. But the feature is that high-quality repair depends not from glue and tiles, namely from preliminary preparation of walls. They must be close to the perfectly level state, without any “shaky” sites. Only after that you can read the laying of the tile.

Thus, despite the fact that cement-based adhesive or a special mortar can be smalleled with minor differences that do not exceed 5 centimeters, it is recommended to take a spatula or sandpaper and clean the surface from dust, dirt, “hanging” plaster or paint. In addition, that your work is not in vain, do not forget to put insignificant, at first glance, defects (cracks and so on).

With a significantly uneven wall, alignment must be planned or using plaster, requiring a large consumption of material, or it will have to do with plasterboard (GLC) trim, which sometimes significantly reduces room space. It all depends on how you decide to take advantage of: Glkl sheets can be glued, and you can erect the frame design.

Pros and cons

So, there is an alternative – plasterboard or plaster. If we talk about budget savings and simplicity of the process, then the most inexpensive and fast way that does not require special skills can be bolden by the alignment of plasterboard. However, it is necessary to take into account that the covering of the room with sheets of GCL can significantly reduce the space. In addition, it will be necessary to reckon with heat and waterproofing.

If the bathroom area is small, or there are minor irregularities, it is more expedient to dwell on alignment with plaster. Work with plaster, unlike drywall, can do a little more expensive (it all depends on its consumption). Newcomers first will have to be not easy, as you need a certain skill. In addition, the positive wall is necessary time to dry, which comes from the applied layer sometimes up to 7 days. There are often cases when in order to save money appropriate combination of drywall and plaster.


Assessing the state of its walls, and correctly determined with the method of alignment, which will be best for you, you can go to construction stores and get acquainted with existing materials.


Plasterboard or GCL sheets are presented in building stores in various colors variation. They are great for fast and perfect alignment. Although the bathroom should buy endowed with elevated moisture resistance sheets of green. They are pretty durable, so they are able to withstand even decorative tiles. When installing, easy to use and in cutting, which contributes to rapid use and economical expenditure of material. Before they are installed, considering that we are talking about the bathroom, it will be more correct to primitive the wall with anti-Grub primer, despite the fact that they are already processed by a special antiseptic.

On perfectly smooth walls or walls with minor cracks and roughhouse drywall can be glued. At the same time, it is recommended to pre-remove any bugs and close the existing holes. It is very important here correct, strictly according to the instructions, make glue. The fact is that over time, the sheets are poorly glued, weighted with tiles, as well as GCL, glued to incorrectly diluted glue, will begin to lag behind the wall.

If the room is allowed, then it is better to reinforce drywall as horizontally and vertically on the raised from a specially galvanized metal frame. The construction of the frame – the procedure is simple, it is necessary to stock level, a drill and beacons that can be made from ordinary thread.

Whatever the method of fastening the plasterboard you choose, it is important to embark the shelves. For this, a special grid (there is also self-adhesive), which should be pasted on the resulting seam, after which a small layer of putty is applied to it.

Sometimes instead of plasterboard with concrete walls, PVC panels use, which are also easy to install and besides slightly cheaper. But here it is necessary to remember that this material is easily flammable and able to accumulate moisture, after which there is an unpleasant chemical smell.

Stucco: What is better?

Some builders, wanting to save, independently prepare a plaster mix, connecting cement with sand or clay. For beginners, it is better to buy ready-made mixes, the assortment of which in stores are wide enough (from clay to plaster). With independent manufacture, for example, cement-sandy solution can be mistaken in the required ratio, which will affect the quality of repair and will complicate it significantly. The greatest demand of buyers enjoy modern cement-based powders and gypsum. Plastering mixture is bred strictly according to the instructions. Too liquid solution will be badly fixed, staining down, and overly thick is taken with lumps, smeared well enough.

Also, remember that it is not necessary to immediately breed too much powder, since the divorced mixture freezes for about 30 minutes, this is the time during which it is necessary to quickly apply the plaster mix when you can also adjust the application.

Plaster based on cement, unlike plaster, is suitable for both internal and external work. Cement mortar has high strength and moisture resistance, which is suitable for use in the bathroom. However, it is rather heavy, so it is not recommended to apply a big layer. There are cases when the tile falls off together with a tinted cement layer. In order to avoid such cases, it is recommended to plaster the wall without applying a thick layer of cement plaster, but to pre-align it, removing the convexity. The relatively smooth wall is then brought to the desired state with a moderate layer of cement plaster.

It is not worth buying a plaster based on the bathroom with a bathroom, as it can dance, absorbing over time an excessive moisture. The use of such a solution is permissible if you process the plaster before laying the tile by waterproofing primer. When buying plaster, you can be guided by the manufacturer (domestic or imported), but it is necessary to look at compliance with the material from which your wall is made, which will provide high-quality repair. Before starting work, the wall can be treated with special primer with the addition of any means from mold.

According to builders, copper culp powder effectively protects against the appearance of any fungus. In addition, it is sold at an attractive inexpensive price in comparison with other modern means.

If you still need to apply a thick layer, it is recommended to use cement-lime mortar, which involves the installation of a plaster grid of steel. Such alignment completely dries around in about a month, the laying of the tile is allowed not earlier than 7 days after cladding. During the purchase of a mixture, it is necessary to see the composition of the finishing of the surface declared by the manufacturer: fine or thick. If the mixture is chosen correctly, the installation of a grid for applying a thick layer may not be needed.

Special coating for applying a thick layer has a high viscosity indicator.

Subtleties of working with different surfaces

There is another important nuance that affects the good and high-quality preparation of the walls to laying the tile. We are talking about the material from which walls, partitions are made, and the house as a whole (brick, wood, concrete and so on).


Old brick houses, for example, consist of only one carrier partition, and the rest are made of plasterboard overlap. Such structures most often were placed with cement mortar on a metal grid, which could be noticeable differences in height, reaching up to 10 cm. Wall processing in such conditions is in full or partial removal of poorly holding plaster.

After that, in order to avoid irregularities, it is necessary to clean the wall well and treat the same solution. So that the angles do not lose their shape, it is desirable to purchase metal corners, on top of which plaster is applied. It is desirable to handle the walls of the wall (a kind of insulation) protecting the brick from moisture.


From the brick partition, the old stucco is removed easily, but the wooden cleaner is difficult. In such cases, to achieve a flat surface of the wall, it is easier to use the special moisture-resistant greenhouse greenon (see above). I remove everything from the surface that it was possible to remove, it is recommended to shock it with almost any solution (lime, clay, cement). Tree in this case unpretentious material, but still an ideal version will be a clay solution, because it does not need high costs. So that the plaster does not slip, it is necessary to attach a metal grid or so-called dranco onto a wooden surface. After the tree is hidden by you at a small layer of clay plaster, you can proceed to the bedding of the room with plasterboard, which will give her a perfectly flat view.


In the panel houses, the demolition of the walls for the construction of new ones are not made due to the features of the building of the house (the house is erected from strong reinforced concrete floors), so the walls here will most likely be relatively smooth. If it is still necessary to level the walls, then the use of cement or gypsum mixtures will be appropriate. It all depends on your needs and curvature of walls. With a solution based on plaster, it is easier to work, since it does not have to constantly wet the surface. Gypsum, unlike cement, gives a lighter and smooth surface. Cement makes her rough and dark. Since we are talking about laying tiles, the color of the treated surface is the same as the roughness, it does not matter. In such cases, the cement-based solution will be more moisture-resistant than a gypsum solution.

With very minor irregularities that do not exceed 5 millimeters, it is easier to correct the walls of the usual building putty.


If you are aligned in a monolithic house, then get ready for plastering works. The fact is that such houses are made of different materials (foam concrete and concrete, puzzle blocks), so only with the help of plaster you can quickly, budget and efficiently correct some roughness of the diverse surface. Most likely, without a laser level and lighthouses here, because such houses give shrinkage, which is reflected on the differences in the wall. In such cases, the level of alignment will depend on the curvature of the walls. If the differences are minor, then a gypsum solution is quite suitable. If a thick layer of plaster is required, it is better to give preference to cement-based mixtures.

It’s you, what method of alignment to choose. The main thing is to take into account the main points affecting high-quality repair.

Tips and recommendations

Establish you how to align and prepare walls before laying tiles.

Anyone your chosen way will be effective if some basic rules are met.

  • It is necessary to clean the wall from the old weakly holding plaster, paint and so on.
  • For amateurs, it will be more reliable to buy a powder mixture for alignment, rather than cook yourself, as you can make a mistake and not to withstand the necessary proportions.
  • Choose plaster with the material from which the house is made.

  • When buying a mixture, pay attention to the composition declared by the manufacturer and compare it with its needs (for applying a thick or thin layer).
  • Prepare a solution strictly according to the instructions. Remember that it dries quickly, so you should not bring too much.
  • So that the lined wall served for a long time, do not forget to treat it with the primer and let it get enough.
  • Remember that you are working in the maximum raw room, so without antibacterial and anti-grab primer, it’s just not to do.
  • The best consequences are obtained when using primer and a mixture of one brand.

In the next video, you will see how to plaster the walls with your own hands and how to align the walls along the beacons.

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