What should I do if the walls regain moisture in rainy days?

Only the right medicine can cure the disease. Let's first analyze why rainy weather breeds ugly mold on the wall. When it rains, the air humidity is too high. When it meets a wall, it will condense into water droplets on the surface of the wall. Once it penetrates into the wall, it is easy to produce mold. Therefore, in the ceiling, dark areas and bathrooms, mold is most likely to appear.

From the analysis of internal reasons, it is that the mildew resistance of paint is not good, water droplets in the air can easily penetrate inferior paint, and water vapor can penetrate into the inner layer of the wall, and mold is difficult to remove, which will also have an impact on repainting in the future. At that time, after comparing many paint brands, we chose Levi's mildew-proof wall topcoat, which was well received. Now it seems that we made the right choice at that time, and the mildew-proof effect was really good.

Of course, if the master painter is not professional enough, it is easy to make the wall moldy. Therefore, in the process of building painting, we must do a good job of supervision. Don't dilute it too much to save paint, which will easily make the paint film thinner and weaken its mildew-proof function. Greedy and cheap, big losses, don't save in this respect! At the same time, the choice of construction time is also very important. Don't brush the wall in rainy days, so the paint film is difficult to dry, and it is easy to get wet and moldy in the process.

After talking about the reasons, it's time to talk about ways! In rainy season, ventilation should be reduced, especially in the morning and evening, so as to reduce the entry of moisture, kill the invasion of water vapor directly in the cradle and give the wall a layer of protection. Next, you can use some desiccant. Southern supermarket has desiccant and moisture absorption box. Buy some at home to reduce the humidity at home. Of course, most children's snacks also contain desiccants. You can collect these and put them at home, which is also a good helper for dehumidification.

Friends in the south must pay attention to the problem of mildew prevention in rainy days. If it is not handled properly, the new house will become an old house carelessly, and it will not be easy once and for all. When it comes to a more convenient solution, it is still necessary to choose a coating with strong mildew resistance when just decorating, and take precautions as early as possible.

I hope the above can help you as a reference suggestion.