How to seal a crack in the wall so as not to remember its existence?

Sooner or later, every person faces the problem of repairing an apartment or a holiday home. Wanting to change the wallpaper or repaint the wall, you may encounter some disadvantages of the vertical surface. When you take off the old wallpaper, you see a network of small damage and now you think how to repair a crack in the wall? Do not worry. We will teach you how to act properly in such a situation and how to repair cracks in the wall. Let's look at the most common options.

How to fix a crack in the wall of bricks?

First you need to understand the causes of this defect. There can be several. The most common reasons are:

• Violation of the technological process during the construction of the building.
• Improperly prepared cement mortar for masonry.
• Violation of the technological process of laying bricks.
• Full absence or insufficient number of reinforcing bars in the wall.
• The lack of a single foundation in the house and the extension, which leads to the formation of cracks at the junction of buildings.

What needs to be done to eliminate the crack:

• First, slightly increase the depth and width of the damage. We try to do this evenly from all sides at an angle of about 45 degrees. Cover the entire crack with a single layer of a special primer.
• To seal the hole, we use cement mortar or a special sealant for joints. When choosing a building material for repair, it should be remembered that laying a mortar from cement can lead to repeated cracking. In this case, it is best to choose a sealant. Even in a dry state, it is sufficiently plastic and can easily contract or expand under the influence of the external environment.
• If you are going to further paint, plaster or plaster the wall, then discard the silicone sealants. The process of leveling the wall for this building material will be difficult.
• Lay sealant in the prepared crack with a special gun. Remove excess with a rubber or metal spatula while simultaneously smoothing the surface of the wall.
• If you use cement mortar for repair, do not forget to moisten the surface of the crack and walls beforehand. Such actions will help the solution to grasp better. To improve the properties of the repair composition, add cement glue to the tile.

How to repair a crack in the wall from plaster?

Plastered walls often undergo cracks. At the same time it does not matter whether it's outer or internal. The presence of damage always indicates a violation of the process during the preparation of plaster, its laying and drying. The appearance of cracks can lead to improper care for the plastered wall. The best option for protecting such walls from cracks is the use of glass fiber "spiderweb", fiberglass or fiberglass mesh. The damaged surface of the wall is cleaned from the precipitating particles of the plaster. After this, the wall is primed and the crack is covered with fresh putty. After it is completely dried, we glue any fiberglass using a special glue for fiberglass wallpaper. Surface coat with a layer of finish putty or color.

How to fix a crack in the wall of gypsum board?

Even a wall of gypsum plasterboard can unpleasantly surprise you with the presence of vertical cracks. Usually they appear in the joints of panels. Any defect on such a wall indicates the wrong mounting of the base and the violation of technology when screwing sheets of gypsum board. Cracks can result in sudden temperature changes, high humidity or flooding of the room, as well as improperly applied mixture of plaster on the joints of the plates.

How and what to repair a crack in the wall? If the metal structure is fixed not very reliably and staggers, you will have to remove the sheets of drywall and replace it. In all other cases, putty or acrylic will be required to cover the crack. Slightly expand and deepen the damage. Dust off the dust with a soft brush. We ground the surface and fill it with the composition for repair. Remove excess material with a spatula. At the joint, we glue a strip of fiberglass, or after completely drying the surface, we grind it with sandpaper. Apply a coat of primer. Only after this, the wall can be painted or wallpapered.