What are the specific methods to prevent moisture and mildew on indoor walls?

When it comes to the first floor, the first thing that many people think of is damp and moldy, especially in the rainy season, the ground slips, clothes get wet, and more seriously, the walls look like washed. Friends with basements must have the same troubles. Today we will talk about how to prevent moisture and mildew.

First of all, we need to distinguish clearly that the so-called "tide" actually comes from two aspects. On the one hand, tides from the outside, usually from groundwater and rainwater, seep into the room. Generally, this wet phenomenon will be local and regional.

On the other hand, it is air condensation caused by environmental conditions. Generally speaking, in this case, the water phenomenon will be more uniform, and even the internal partition wall that can't leak water will have uniform water droplets, which is the real "tide".

For external water seepage, we can solve it by waterproof treatment. Waterproof is to prevent liquid water. The best solution is to choose a good waterproof material and construction party. If waterproof is not done well, moisture-proof is of little significance.

1, waterproof from the outside to the inside, first of all, to ensure the waterproof effect of the external wall.

Developers will have this process when building a house, but after closing the house, you can pay attention to it in heavy rain or rainy season to see if there are any water seepage points. Once any seepage point is found, you should immediately contact the developer or property to redo the external wall waterproofing.

2. After the exterior wall is waterproof, we also need to waterproof the interior when decorating to prevent it from penetrating into the interior.

Generally speaking, when we decorate, we only need to waterproof the bathroom and some balconies, but if it is the first floor or basement, it is recommended that the whole ground and wall should be waterproof.

3. Don't slot the waterproof wall floor.

In order to prevent the keel and trough from damaging the waterproof layer during decoration, if possible, it is suggested that after waterproofing is completed, the wall surface should not be slotted, but exposed pipes should be adopted, and then the new single-sided brick wall on the wall surface should be isolated, and then concrete with a certain thickness should be poured on the ground.

How to do moisture-proof treatment

After ensuring the waterproof effect, we also need to pay attention to the moisture-proof treatment of air condensate.

1, in the civil engineering stage, brush a layer of wall and ground before batch of putty.

If it is an old house, it is best to remove the dust from the original wall to the wall brick and repaint the cement mortar before this.

It is understood that there is a special moistureproof liquid which is sprayed directly on the concrete surface. Its principle is that the cross-linked body produced by infiltration into the wall structure can effectively repair and seal the "moisture transmission channel" existing in the structure itself, but it needs to be painted before waterproofing. At present, the moisture-proof effect is not bad, but the longest use time is only about two years, and the actual effect remains to be seen. You can learn about it if you need it.

Step 2 make a partition wall

If it is a basement, if possible, it is best to make a partition wall. The larger the widening area of the wall, the better its moisture-proof performance.

3. Pay attention to material selection

For example, try not to choose the floor and use floor tiles; Choose waterproof coating or diatom mud for the wall surface; Silicone and other accessories try to choose mildew-proof type; Try not to use solid wood for furniture, and it is best not to fall to the ground.

4. Reduce the temperature difference

Because the condensed water mainly comes from the temperature difference between air and buildings, it can naturally be solved by reducing the temperature difference. We can increase the ground temperature by installing floor heating, or turn on the cold air conditioner to dehumidify and reduce the air temperature.

5. Install fresh air dehumidification system.

According to the needs of different seasons, dehumidify or ventilate each room. Many people feel suffocated in wet weather and like to open windows for ventilation. But in rainy days, ventilation will also bring a lot of water indoors. After installing the dehumidification system, you can set your own humidity value to automatically dehumidify.

Of course, the above methods are only applicable to newly renovated families. If you don't plan to redecorate, you can consider installing a mobile dehumidifier or putting some desiccant with strong adsorption, such as activated carbon bag. In addition, you can turn on the air conditioner according to the situation, and you don't have to dehumidify it. Sometimes the cooling mode is very effective.