What should I pay attention to when renovating and reloading second-hand houses?

When buying a second-hand house, if you don't want the house to have traces of others living in it, or if you don't want to live in an old house, you must renovate the house. Among them, wall renovation is one of the key projects in the renovation of second-hand houses. After a long time, people can obviously feel that there are many problems on the wall when they live, so people need to pay special attention when decorating. Then, what should be paid attention to in the wall decoration of second-hand houses?

Attention should be paid to the wall decoration of second-hand houses

1: wall paint that is more than five years old must be removed.

For the walls of second-hand houses, if they are only decorated for one or two years, they can be removed. After polishing the wall with steel brush and sandpaper, you can brush the latex paint again. However, it should be noted that the water-resistant putty used for more than five years must be removed to the bottom of the wall during the secondary decoration due to the aging of the material, otherwise it will affect the construction quality of the wall latex paint and the long-term use effect after decoration.

2. Remove the fence to ensure safety.

For the decoration pattern of second-hand houses, it is probably not suitable for our wishes, and reasonable demolition is beautification and adjustment. But pay attention to ensure safety. According to the relevant laws and regulations, "non-load-bearing walls can be removed." At the same time, when the wall is demolished, the power supply should be cut off in advance to avoid accidents. The original power cord and weak wire should be kept, marked and recorded in advance, and the video cable and broadband network cable should not be cut off to prevent the signal from being blocked after transformation. Some walls adjacent to the kitchen and bathroom should not be demolished, which will destroy the integrity of the waterproof layer and affect the future living safety.

3. Wall repair should be comprehensive.

Generally speaking, it is difficult to achieve the ideal effect by repairing and painting the wall. Therefore, when decorating the walls of second-hand houses, the owners must carry out comprehensive maintenance. For the damaged wall, try to repair the whole surface or choose a larger area, so as to avoid color difference as much as possible and the quality will be better after repair.

4. Pay attention to ventilation after painting.

In addition, the decoration of second-hand houses should also pay attention to ventilation, especially in old houses. The ventilation conditions are poor, and the xylene component in the diluent will react chemically with the components in latex paint, resulting in yellowing of the wall. Therefore, it is really impossible to strengthen ventilation, and several electric fans have to be put to enhance the ventilation effect.

Treatment steps of second-hand house wall decoration

1. Cleaning the old wall: Generally, the old wall will have problems such as oil stain, floating ash, hollowing or cracking, and low water absorption, so it is necessary to do some cleaning work on the wall surface. For the old wall surface, floating ash should be removed first to eliminate sand and peeling. For oily parts, the original coating should be removed first. If it cannot be removed, it should be thoroughly cleaned. After the wall is cleaned, scrape it twice with putty.

2. Scraping putty: It is best to choose putty with high particle fineness and hard texture. You can also add some white latex to the putty to improve the hardness of the putty.

3. Polishing: Try to use fine sandpaper, generally use 400-500 grit sandpaper for soft putty (such as 82 1) and 360-400 grit sandpaper for hard putty (such as wall lining and easy leveling). If the sandpaper is too thick, it will leave a deep sand mark, which cannot be covered with paint. The polished wall must be thoroughly cleaned to avoid too much dust and affect the adhesion of paint. The concave-convex difference shall not exceed 3mm.

4. Priming: The primer must be brushed evenly to ensure that every part of the wall is brushed. If the amount of wall painting is large, it is best to add a little more water to the primer to ensure uniform brushing. Don't think that a roller is enough just because it is a primer. The brushing effect of primer will directly affect the effect of topcoat. Use a roller with the same texture as the top coat.

5. Repair: There will be some flaws (pits) after the putty is polished, which is difficult to see under normal circumstances. Draw it once to make it obvious. At this time, it needs to be patched. Pay attention to patching, be sure to polish it flat, and then brush the primer with a little more water to avoid color difference caused by different water consumption from other walls when brushing the topcoat.

6. Top coat: The painting here is suitable for ordinary painting. Do not add too much water, which will affect the thickness, feel and hardness of the paint film. Try to choose better tools. The hair of the roller should not be too short, but it must be thin, so that the paint film drawn will have a delicate feeling. Pay attention to the corner, the indirect stubble part in each roll and the direction of paint collection.

7. Maintenance: The latex paint will dry after 4 hours, but the dried paint film has not reached a certain hardness. This needs to be careful. It's simple. Do not scrub or touch the wall for 7- 10 days.

What should I pay attention to in the wall decoration of second-hand houses? When the second-hand house is decorated, there will be many kinds of materials, just like there are many choices when the house is decorated. Therefore, when decorating the wall, I hope everyone can choose materials reasonably to ensure that they can choose a material that they can accept and be satisfied with when decorating the wall. There are still many problems in house decoration, not just wall decoration. Before the renovation, the owner should be able to understand all the renovation projects.