How to knock on the wall in decoration is the correct way?

Knocking on the wall is also called tearing down the wall. It means to tear down or dig out the wall built in the original house and change the position or size of the room again for the part to be rebuilt. This is knocking on the wall. \x0d\ Precautions for digging and knocking on the wall: \x0d\ 1. The top beam can't be removed: \x0d\ Some owners think that the beams at the top of the house will affect the appearance during renovation, and plan to knock off the protruding parts of these beams. In fact, the beam in the middle of the house must not be knocked, because the beam supports the upper floor, and knocking on the wall or decoration will cause the upper floor to fall. \x0d\ In addition, it should be noted that if the top of some walls is connected with a beam, only the bottom of the beam can be knocked when knocking on the wall. For example, the wall between the bedroom and the study should be knocked off in this construction site, but there are beams on the wall, so you can't move here, otherwise there will be security risks. If you can't knock on the beam, you can hide the beam with a ceiling without affecting the appearance. \x0d\ 2。 Don't knock on the wall connecting the balcony: \x0d\ Some owners knock off part of the wall connecting the balcony to increase the width of the balcony door in order to improve the lighting of the room, which is not allowed. Because the external walls of houses are generally load-bearing walls, it is very dangerous to make holes and open windows in them. \x0d\ In addition, there used to be a window and a door on the wall between some rooms and balconies. These doors and windows can be knocked, but the wall under the window cannot be knocked. This wall on the window line is called "counterweight wall", which plays the role of provoking the balcony. If this wall is torn down, it will reduce the bearing capacity of the balcony and cause it to fall. \x0d\ 3。 It is forbidden to tear down the load-bearing wall: \x0d\ Many people know that the load-bearing wall cannot be torn down and changed during decoration. But what kind of wall is a load-bearing wall, not many people can say clearly. A load-bearing wall is a wall without precast ring beams. The wall thickness of load-bearing wall is obviously thicker than that of non-load-bearing wall in plan view. The actual wall thickness is generally 24 cm, and the non-bearing wall is 10 ~ 15 cm. Exterior walls are generally load-bearing walls, and so are the walls used by neighbors. Generally, non-load-bearing walls are in bathrooms, storage rooms, kitchens and aisles. \x0d\ In a word, the structural safety of the house will be affected if the wall is accidentally removed during the reconstruction of the house. If the owner carries out structural transformation of the house, he needs to check the structural design drawings of the building to see which are the load-bearing walls, and consult relevant professionals before construction. \x0d\ 4。 The repair work after the wall is demolished cannot be omitted: \x0d\ The wall has been pushed down safely, but the later repair work cannot be ignored. For example, when the original wall is knocked out and a new wall is built with red bricks, tie bars should be set on the new wall. "Bracing" is the construction method of the joint between the old and new walls, that is, the new and old walls are pulled with steel bars to ensure the stability and seismic capacity of the walls. \x0d\ In addition, dig a doorway on the wall, and erect a reinforced concrete "beam" above the doorway, so as to share the pressure of the wall above the doorway and avoid the pressure above the wall directly pressing on the door frame. \x0d\ Report to the property for examination and approval before tearing down the wall: Generally, when the building is completed, the original design unit will leave a drawing for the property company. The thickness and materials of various walls such as load-bearing walls and non-load-bearing walls are clearly marked on the drawings. The property company can determine which walls can be knocked according to the drawings. Therefore, before the wall reconstruction, the owner must submit the construction drawings given by the designer to the property management company, and the construction can only begin after the property is approved.