The appearance of a crack in the wall is a rather troublesome event. The reasons for this may be different. It is possible that during construction the technology was disrupted, or maybe sharp temperature fluctuations led to the partial destruction of the building. Whatever the reason, the wall can be restored. It is necessary to know or determine exactly what material it is made of, since this will determine the choice of technology and the procedure for restoring the damaged section of the wall in the future.
Cracked plaster is common. Such cracks can form both on the inside and on the outside of the wall. Especially if the composition of the plaster includes sand. If such cracks appear, then immediately there are a lot of them, and they instantly sprawl, forming intricate patterns on the walls. This defect is clearly visible after applying the primer.
There may be a number of reasons for this. As a rule, this is a failure to observe the proportions of the constituent components, a violation of the application rules or improper care of the wall during further operation. However, most often the reason lies in the fact that the layer of plaster is too large.
If the wall is subjected to any work related to puttying, painting or wallpapering, it is also difficult to avoid cracks. To deal with this disadvantage of plastering, you can use wall reinforcement. For reinforcement, you can use fiberglass or masking fiberglass.
It is possible to use glass, but this is the most expensive option for the price. For reinforcement, specialists often prefer to use fiberglass. Due to the structural features of this material, with its help it is possible to reliably protect the walls from the repeated appearance of cracks on them. When reinforcing the wall with fiberglass or cullet, special glue is used.
Before gluing fiberglass, the surface of the wall is carefully processed. Previously, it is primed and dried. At the finish, the fiberglass is first puttied, then dried and painted.
Cracking a brick wall
Their appearance can be caused by such reasons:
- No additional wall reinforcement, reinforcement;
- Over time, the building itself and its walls shrink;
- The mortar for laying bricks has the wrong composition;
- The installation procedure has been violated.
In all cases, it is necessary to observe a certain order in carrying out restoration work.
The crack must be carefully cleaned and widened. After the internal surface is primed. The laying of the crack itself is carried out with the same solution that was prepared for laying the walls. The most rational way to seal cracks is the use of a special sealant for sealing joints. The sealant has special properties that make it as if rubber after drying.
Depending on external factors of influence, it can expand and vice versa, contract. Compared to a regular mortar that can crack again, the sealant does not crack after it has completely dried.
In order to carefully fill the joints with sealant, a special construction gun is used. With its help, work is carried out much faster and more accurately. The remaining material is removed with a spatula, and the wall acquires a flat surface. Do not use silicone sealant, as it will be difficult to stick to it in the future, putty and plaster. Staining will also become problematic if this sealant is used.
Of course, an ordinary solution is cheaper, but if it comes to the quality of work, it is recommended to use modern materials. Despite the rather high prices, for example, the sealant wins back with their more reliable characteristics.
In addition to the sealant, you can use cement mortar, you just need to remember that before closing the crack, it is well wetted inside with water. Such a composition, in principle, can be replaced with similar materials, for example, tile adhesive.
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