Note 1: Do not dismantle the load-bearing wall indiscriminately; Removing the load-bearing wall without permission not only has serious hidden dangers, but also violates the relevant regulations of the state. The load-bearing wall is the main body of the house. Once there is a problem, it will not only suffer economic losses, but also be sanctioned by law. Pay attention to the walls that can be demolished and rebuilt, which are detachable and which are not. So consult the property before the demolition, because the property will have some structural drawings of the house. Without drawings, there are doors and external walls. Try not to tear them down. And take a ruler to measure the thickness of the wall, it must be a load-bearing wall; These walls in the bedroom must be load-bearing walls. They cannot be removed.
Note 2: Hydropower transformation; Generally, the original waterway pipeline layout is unreasonable or corroded, so the waterway should be thoroughly inspected. If the original pipes are obsolete galvanized pipes, they must all be replaced with copper pipes, aluminum-plastic composite pipes or PP-R pipes during construction. There are many PP-R tubes used recently, which must be replaced.
Note 3: Circuit transformation; The decoration of second-hand houses generally has the characteristics of simple wiring distribution, aging wires and illegal wiring, which can no longer meet the electricity demand of modern families. Therefore, when decorating, it is necessary to completely transform and rewire. Because aluminum wire was used in the past, it needs to be replaced by copper wire now, and PVC insulated protective tube should be used. For the wiring of high-power electrical appliances such as air conditioners, it is necessary to run the wiring separately. Simply put, it is to start over. As for the socket problem, we must add more sockets, because the sockets of second-hand houses can't reach the number of electrical appliances now, so this must be changed in the decoration.
Note 4: Tile floor renovation; When smashing wall bricks and floor tiles, avoid debris blocking the sewer; Only solid wood flooring, solid wood composite flooring and bamboo flooring with a surface thickness of 4 mm can be renovated. In addition, local renovation will also cause differences between old and new floors, and consumers can't blindly renovate floors.
Note 5: three-sided decoration; The decoration of the wall, floor and ceiling of the second-hand house is the most easily overlooked. The original decoration of old houses generally uses hydrophilic gypsum putty, which needs to be completely eradicated before it can be replaced with water-resistant putty.
Note 6: The closed water test is the most important and basic.