What are the causes of cracks in the wall? What about cracks in the wall?

Wall is the foundation of house decoration and one of the most important areas. If the wall decoration is not good, it will not only affect the beauty of the room, but also have dangerous safety problems. So what are the reasons for the cracks in the house and how to make up for them? Let Bian Xiao take you to know about it. 1. Reasons for cracks in the wall 1: In the initial stage of renovation, many families will carry out apartment renovation for the sake of beautiful decoration, demolish the non-bearing wall, and then build new walls where necessary. The same is true of this owner. In the original apartment, the bathroom door was in the middle of the wall, but the owner felt it was not easy to use, so he wanted the workers to move the door. In this case, it is necessary to tear down the bathroom wall. The problem is that when building a new wall, the decoration company directly uses the waste bricks removed from the old wall to match the wall built with cement mortar, and even goes to the construction waste dump to pick up bricks when there are not enough bricks. The reason given is that these cement bricks are light in weight and will not increase the weight of the whole floor. But the owner doesn't know about this, and he can save a sum of money for bricklaying, so he believes the decoration company's rhetoric and allows workers to use waste bricks. As a result, the old brick removed from the old wall was damaged, with poor bearing capacity and stability, and cracks appeared soon. Therefore, Bian Xiao suggested here that if your home needs to be renovated during renovation, you must buy new bricks, which are durable. Avoid this situation in the owner's home. Reason 2: Horizontal slot wiring, unstable wall. There is a switch at the door of the master bedroom and a switch at the door of the bathroom. In order to save trouble, workers directly cut horizontal grooves in the middle of the wall. The originally thin and unstable city wall is even more precarious. Transverse cracks in the wall are caused by transverse slotting of wires. Therefore, we must pay attention to the renovation of new houses, and water and electricity should not go through walls. Reason three: the new and old walls are not hung with nets. I think many friends don't know what hanging up the net means. The owner in the article didn't know that the net needed to be hung between the old and new walls until he saw the decoration of his friend's house. It is best to hang steel wire mesh. Because hanging the net can ensure the firmness of the wall, make the old and new walls become a solid whole, and also increase the cohesiveness of mortar and putty. Ps: The hanging net should exceed the old wall 10 cm, otherwise the wall will crack easily in the later period. In addition, it is also necessary to slot the wall during hydropower transformation and fill it with mortar after wiring is completed. Before plastering putty, it should be covered with fiber grid cloth, which also belongs to hanging net to prevent cracking, and the joints between shear wall and brick wall, column and brick wall should also be used. The above three reasons are the important reasons that lead to cracks in the wall of the owner's house. The little friends who are ready to decorate must take the warning! Next, let's talk about the solutions to wall cracks. Second, the solution to the wall cracking once and for all: tear down the wall and rebuild it. Repair method: firstly, remove the surface putty and leveling gypsum, re-approve the putty after the base treatment, paste a layer of white dacron cloth on the wall with white latex, and ensure the completion of the surface layer by fiber tension. 2. Chisel the base of the cracked wall into a U-shape, with the spacing between the U-shaped grooves greater than 20cm, and hang the steel wire mesh after roughening the chiseled base. Third, in the curing process, for some relatively large cracks, first remove the surface putty and leveling gypsum, cut the cracks with a putty knife, and fill them with anti-crack mortar. Pay attention to filling them evenly, then paste the cracks with white latex and white dacron cloth, and then scrape the putty or do other treatments after drying. The above is the decoration knowledge about the causes of wall cracks and how to make up for them.