How to paint the damp and moldy wall and how to prevent it?

Continuous rainy weather will increase indoor humidity, easily lead to mildew on the wall and affect the beauty of the wall. How to brush the damp and moldy wall? How to deal with moldy walls before painting? Today, this article will introduce the related contents of dealing with moldy walls.

How to paint the damp and moldy wall? 1. If the wall is only a small mildew spot, you can clean the mildew spot on the wall with a toothbrush first, then wipe it with a towel stained with alcohol, and scrub it repeatedly if necessary to make the wall dry enough to prevent mold growth.

2. If the moldy area of the wall is large, it needs to be bleached with bleach first. Wipe off the mold on the cloth stained with bleach, and then rinse it with water once. When the wall is completely dry, it can be repainted. In order to increase ventilation, it is recommended to install an exhaust fan to prevent mildew. When painting, the primer should be applied first, and then the topcoat should be applied. After this, the painted wall has better moisture-proof performance.

3. If the wall is damp and moldy, you can wipe it with a towel dipped in water. If the water can't be cleaned, you can scrape off the mildew spots with tools and then repair the wall. It is recommended to brush a layer of waterproof paint.

How to paint the damp and moldy wall 1, close the doors and windows in rainy season or continuous rainy days, or lay a layer of newspaper or cardboard on the ground to absorb indoor moisture. In particular, you can put more newspapers at the gate to prevent water vapor from infiltrating from the door.

2. Ventilation by opening windows is conducive to air flow. In case of wet weather, water vapor is easy to enter the room, resulting in damp and moldy walls, so it is necessary to reduce the number of windows. Of course, you can also use dehumidification equipment, such as dehumidifier, air conditioner, electric fan, etc. to absorb excess water on the wall.

There is also a special dehumidifier in the store, which helps to prevent the wall from moldy. Take a proper amount of dehumidifier and put it in different places at home. Ordinary washing powder at home can also absorb water. You can cut 3-4 holes in the washing powder packaging bag, which is a dehumidifying tool.

The above introduces how to paint and how to prevent the wall from being damp and moldy, hoping to help everyone. In case of rainy weather on weekdays, be sure to close the windows to avoid water vapor infiltration.