Many are faced with a situation when it is necessary to cement the cracks. In order to know how best to close up, you need to find out why she came and what made the walls themselves. Cracks in the wall can occur for the following reasons: irregular masonry stone or brick, concrete fill wrong, the wrong structure is assembled by plasterboard, correctly chosen proportion in solution, properly applied plaster, extreme temperatures, incompatibility wall finishing material pictures and so on. d. Factors that may lead to the fact that in the wall of a crack, a lot, try to deal with each such case separately.
What does it take to seal a crack in the plaster walls?
With such a problem you often encounter not only outside, but also inside the building. Cracks are always formed in the cement plaster. Most often, these cracks are thin and are placed over the entire surface of the wall, like a thin web. Such cracks are clearly visible after priming plaster. They appear due to the fact that the technology has compromised mixing components of the solution, or it has been applied correctly. Also, such a crack may occur due to the fact that the plaster has been applied directly to a thick layer (over two - three centimeters) and this can not be done precisely.
Also, a crack in the wall can appear and after painting, putty, wallpaper pasting it, so in any case, before applying the finish plastering the walls need to be reinforced. For this purpose, several kinds of materials: fiberglass, fiberglass paint or fiberglass mesh. As the most expensive are fiberglass, then dwell on them will not, say, the only one that is similar to the technology of their gluing gluing glass fiber.
The best option for plugging cracks - use of glass fiber. It is adhered to the adhesive fiberglass, primed, and on dry ground. After that fiberglass can be proshpaklovan sealer or latex paint. Due to its structure, glass and fiberglass reinforced surface, so a crack at it no longer will.
What does it take to seal a crack in the masonry?
Most often, such cracks are formed for several reasons: the lack of reinforcement in the wall, brick drawdown structure, incorrect laying bricks technology or failure to comply with the proportions in the manufacture of masonry mortar.
First crack must expand in all directions at an angle of forty-five degrees, and deepen, and only then primed. Can be repaired crack ways: use the same solution, which was placed on bricks or sealant for seams. The latter approach is more, as after it is completely dry, it becomes a rubber that allows it to expand and contract when new fractures (in this grout ability not). Sealant is placed in the slot by a special construction of the gun, and the excess removed with a metal spatula or rubber. It is impossible for sealing cracks in masonry-type silicone sealant is used, as it is bold and it will not stick putty, plaster, paint. Seal the crack with sealant - quite expensive, but worth it.
If you gloss over the cracks in the brick wall with cement mortar, then, after a gap to be prepared properly, it should be moistened with water and paint over grout. If you can not use the mortar, it can be replaced by a similar, but only based on cement (cement plaster, tile adhesive, plaster in bags, and so on. D.).
Close up a crack in the wall of the drywall.
Such a crack can appear at the seams of the following reasons: incorrect frame mounting technique or improper bolting sheets GCR. How to do it, you can read in the article "Install the plasterboard walls." Also cause cracking technology may be a violation of putties and caulking technology. But there are other reasons, which are much rarer: dampness in the room, a sharp temperature drop, flood. Once the drywall is in contact with water, it is deformed after drying is curved, and this can not be correct. Therefore, if the plasterboard has been flooded, it needs to be completely changed.
To putty the cracks in the wall made of drywall, you must first expand the crack, then repaired it with acrylics or special putty for sealing drywall seams. Then, on top of seams must be glued fiberglass, puttied it clean, pokleit wallpaper or paint. 2nd method is more time-consuming and expensive, but more reliable. These two methods can be used only when the drywall sheets are properly secured and do not stagger. If the frame is unsteady, there is no way does not help, the crack will continue to appear.
To putty the cracks in the wall of drywall c need a sharp knife (building) to delve into two - three millimeters into the crack. Thereafter, the crack is cut at an angle of forty-five degrees to the result was cut into five millimeters. This must be done in order to increase the adhesion area putty sealant. With a brush from a crack removed small pieces of gypsum and dust, and then a crack is primed. After the primer is completely dry (drying time indicated on the bank), the gap is sealed putty or sealant for sealing joints drywall, or a mixture of such flush with the plane sheet.
It is not recommended to plug the gap with silicone, as it is bold and it will not stick putty and paint. To smooth the putty or sealant using a narrow trowel width of two - five centimeters. If at the time of termination not use tape or fiberglass-serpyanku, after sealing putty cracks, place of repair is polished several times, primed, painted or wallpaper.
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