Finishing moment is very important during construction and repair work. It should be borne in mind that almost any person can plaster a brick wall on their own, experience and special skills in this business are not required. If the work is carried out competently, its result will be pleasing for many years and no problems will arise. The main condition is compliance with the rules and nuances of the process, which we will discuss in our article.
Types of plaster
The first problem facing finishers is the right choice of plaster. Not only how smooth the walls become will depend on this. The material also protects the surface from moisture, can provide a decorative function, in addition, it helps to improve sound and thermal insulation. Plaster can be divided into several types, depending on the scope of its application:
Plaster is usually used in rooms where it is planned to further finish. It can be used as a base for paint or wallpaper. Special perfectly protects from moisture, helps strengthen sound and thermal insulation. Decorative can be made in various colors and textures, it is usually used for outdoor work.
For quality work, the correct choice of solution is very important. It includes sand and a special astringent, most often cement, gypsum or clay. The type of solution should depend on the place of its operation.
The next significant point is the selection of tools. It must be borne in mind that the lack of necessary items can disrupt the progress of work and will not allow achieving the desired result. So, you will need a container in which the solution will be diluted, a mixer or a blade for mixing it, a brush or roller for applying, a scraper, a chisel, a puncher, a level, a drill, a tape measure, a trowel for removing corners, a grater, a spray gun for wetting the surface, a plumb, usually a pencil.
In order to accelerate the progress of work, it is advisable to use a plaster gun. He copes with the spraying of the composition on the wall. In this case, the result is better. Due to pressure, the solution adheres better to the surface, filling in irregularities, and the process itself is much faster.
How to prepare a solution?
When plastering a brick wall, both cement and gypsum mortar can be used. They differ in certain parameters. Gypsum must be mixed in small volumes, since its setting time is quite short. Cement can withstand longer periods, so it is advisable to prepare it in larger quantities. The final drying time also depends on this - if in the situation with gypsum this process takes up to a week, the cement mixture will finally dry out only after a month.
There are 2 ways of plastering the surface, which differ in the presence of beacons. In this case, the solution in both cases is prepared equally. It happens as follows.
First of all, it is necessary to sift the sand, removing garbage from it. Next, cement is added in proportions of approximately 3: 1 and thoroughly mixed to an even consistency. After that, water flows in. Stir the solution constantly. If proportions are not respected, traction may deteriorate. Using a drill, the solution is thoroughly mixed, after which it is left for several minutes.
In order to increase the plasticity of the solution, you can add latex, a dispersion of PVA or a plasticizer. It is recommended to use the mixture in the next 1.5 hours. When thickened, you can add a little water to it.
An important stage is the preparatory work. It includes several points that cannot be ignored. First of all, it is necessary to check the availability of tools. The following is surface preparation.
Walls need to be carefully examined. Loose bricks, if any, are fixed with cement or foam. Cracks and chips are smeared, deformed areas are removed. If this is not done, the plastered surface can begin to deteriorate quickly enough. The old composition must be removed.
A plumb line will help to identify defects and roughnesses in the surface. Seams are cleaned, dirt and dust are removed. The remaining surface is also cleaned, after which it should be primed. It is the primer that helps the materials to bond better. The next item is the installation of beacons.
To begin with, self-tapping screws are installed in the upper corners, protruding a couple of centimeters above the surface. Plumb lines are placed, screws need to be fastened to their cords. Next, a tourniquet is stretched, which forms straight lines horizontally, and under them beacons start up, the distance between which is 2 meters. Fixation points should be located 20 centimeters apart. As a result, the wall will have vertical dividing strips.
It is not difficult to plaster a brick wall correctly, you just need to strictly observe the technology. For beginners, the question often arises as to whether beacons should be removed. Experts respond positively, explaining this by the fact that the implementation of this paragraph will save from the mass of problems in the future. After all, even galvanized elements will corrode over time, which will negate the work done.
It must be borne in mind that plastering on the street and indoors has its own nuances. Let us dwell on them in more detail.
If the work is carried out not inside, but outside the premises, the preparatory phase should not be neglected. If the house is old and an external repair of the building has already been carried out, first of all it is necessary to get rid of dirt and dust. In any case, hydration of the facade will be required, which can be done using a conventional watering can or spray gun. Next, the surface should be primed.
You can use a special grid. Its fastening is done before starting work, and the mixture is applied on top. Leveling plaster is made from the bottom up, focusing on beacons. In order to achieve a perfectly flat surface, you should use the rule.
The solution is recommended to be applied in a thin layer. If you make several moves, shrinkage cracks will be less. The first layer is necessary to fill the pores and provide a more durable adhesion of materials. The second is applied only on a dry surface, so it sticks better and holds stronger. The solution in this case is used more thick.
For greater adhesion to the top layer, the surface should be brushed. The finish should be laid out with a thickness of 2 millimeters.
After all the manipulations are done grouting. This will require a grater that needs to be moved counterclockwise. Once the grout is completed and the walls are dry, you can start whitewashing.
Inside the house
If repairs are carried out in the apartment, the work should be performed as follows. Lighthouses should be firmly fixed to the surface to be moistened. The solution primarily fills cracks and bumps on the walls. As soon as the first layer has dried, the main part of the plaster is applied, the thickness of which depends on the level of the beacons.
The mixture is leveled upward, excess material is removed. Do not apply the mixture in too thick a layer, as it may crack. After the coating has dried out a little, beacons should be removed and the seams carefully repaired. Next is the grout. After that, you can carry out decoration from the inside of the room.
Plastering brick walls is not a very complicated process, but it requires, however, attentiveness and competent execution. You can do the work yourself, but a violation of the basic rules can cause the plaster to crack and crumble after a while, so you will have to change the decoration of the room or the facade of the building. In order to avoid such a problem, in addition to describing the technology of work, experts give recommendations, focusing on which you can reduce the time of work, get a good result and extend the life of the surface. Consider the main ones.
It should be noted that the range of materials for exterior decoration is quite wide. There is decorative brick, siding, ceramics and much more. Stucco is one of the main places. Connoisseurs of unusual design and new technologies will appreciate the facade decorative plaster called “bark beetle”. It is used quite often and has become popular due to its appearance imitating wood spoiled by a bark beetle.
If plastering brick walls is carried out in rooms with high humidity, experts recommend adding lime to the mixture. This option will be appropriate for work in the basements of buildings. To increase the ductility, you can add a small amount of liquid soap. It must be borne in mind that plastering should not be carried out at temperatures below 7 degrees.
If it is not possible to use a cement mortar, experts recommend making a gypsum mixture. In cases where it is required to process the wall with insulation, but it is impossible to apply special materials, the addition of pumice will save the situation. To check the readiness, you should conduct a test application of the mixture. To do this, it is laid out pointwise with a thickness of 2-3 centimeters and should firmly adhere to the surface. If the layer has a thickness of more than 7 centimeters, the mixture should drain.
It should be borne in mind that if the building was built recently, you need to withstand the time for its shrinkage. Any monolithic-brick house is subject to this process. If a thick coating is required, a reinforcing mesh should be chosen. This condition is especially true when conducting outdoor work.
About the plastering of brick walls indoors, see the next video.