What should I do if the white wall has mold, what should I do if the white wall has mold?

1. Use alcohol or 84 disinfectant to treat moldy walls.

If the mold on the wall is not serious, first use a brush or dry rag to remove the mildew on the wall, and it must be a dry brush or rag, otherwise it will easily lead to more serious mold on the wall. Once you have brushed the mold on the wall, wipe the wall with a towel dipped in alcohol.

2. Use bleaching powder.

If there is a lot of mildew, you can wipe it clean with alcohol, use bleach powder with water, the ratio of bleach powder to water is 1:99, and spray the bleach powder mixed with good water on the moldy wall.

3. Do a good job of waterproof and moisture-proof on the wall.

Our wall mold is because the wall at home is not waterproof, moisture-proof, or the wall has water seepage, so we can paint a layer of waterproof paint on the wall after cleaning the mold on the wall, so as to prevent the wall from mold again. In addition, we should always open windows in our homes for ventilation.

What are the causes of moisture in the wall?

1.There is a large temperature difference between indoor and outdoor. The first situation may be that the wall insulation is not done well, resulting in a large temperature difference between indoor and outdoor, and the moisture in the indoor air is pre-condensed to the wall, which will lead to the dampness of the wall for more than a long time.

If you are not sure whether it is caused by the quality of wall insulation, there is a very simple inspection method, you can try it at home: use the inspection hammer to knock on the wall, listen to the sound, if the sound is dull, it means that the wall is not well insulated; Conversely, if the sound is hollow, it means that the wall is insulated. Of course, poor selection of insulation materials will also cause the wall to be damp, then it depends on whether there are cracks in the wall, if there are cracks, you can consider replacing the insulation materials.

2.Water supply pipes and drainage pipes leak, and owners in northern areas should also pay attention to checking the heating pipes of their homes. Leakage in pipes can also lead to dampness and mold in the walls over time.

You can ask a professional to do a suppression test to detect. The water pipe pressure test is one of the common methods to judge whether the water pipe connection is reliable, if the pressure test fails, it can indicate that there is a leak at a certain point of the pressure pipe.

3.There is also the cause of rainwater infiltrating into the room. This situation is usually due to the fact that the junction between the baffle under the balcony window and the wall is not properly treated, cracks appear, or the window is not tightly sealed, which can also cause rainwater to seep into the room.

It is not difficult to remove mildew, but it is necessary to remove all the original putty on the moldy wall, and then reprocess it according to the normal wall construction procedures. However, mildew appears in the house, especially if the new house has not been occupied for a long time.

What to do with moldy white walls.

If there is mildew on the wall, then it is better to clean it with a hypochlorite solution (household bleach) than a detergent, and dilute one part hypochlorite with three parts of water to make a cleaning solution. Wear gloves and goggles to protect your ** and eyes, gently scrub the moldy part with a thick steel wool cloth (scouring pad) full of cleaning solution until it is clean, let the cleaning solution stay on the wall for 15 minutes, and then rinse thoroughly with water, if the wall mildew is serious, you can repeat the above actions once.

Hit the wall with an inspection hammer, if the sound is hollow, it means that the wall has an insulation layer, if the sound is muffled, it means that the wall has not been insulated. If there is an insulation layer, it is necessary to check whether there are cracks in the exterior wall of the building, if there are no cracks, it means that the insulation material is not good, and it should be replaced, which is the best method.

Why do walls get moldy.

1. Leakage of water supply and drainage pipes or heating pipes causes the wall to be damp, and the wall will become moldy after a long time.

2. External rainwater seeps into the room, causing the wall to be damp. Cracks in the junction between the balcony window and the wall (mostly made of prefabricated floor slabs, so the junction with the wall is prone to cracks) and the wall, or the poor sealing performance of the window can cause external rainwater to seep into the room.

3. The wall insulation is not done well, resulting in a large temperature difference between indoor and outdoor, so that the water in the indoor air will condense on the wall after being cold, resulting in dampness of the wall.

4. Inferior paint is used. The formula of many inferior coatings is glue, ordinary anti-falling agent, talcum powder, ordinary film-forming additives, can not ensure the durability of the coating, the paint just brushed up to feel OK, after a period of time, the fastest few months, will expose the problem, such as cracking, pulverization, hollowing, yellowing, strong water absorption, this is a good hotbed for mold infiltration and growth, after several times back to the south of the weather dry and wet alternately, it is easy to mold. In addition, the added glue and various additives contain organic ingredients of low purity and too many impurities, which are also the main causes of mold, and some inferior glues and additives themselves will lead to mold.

As soon as the weather is wet, the walls are easy to get wet, and then mold, becoming very ugly, which is very annoying, especially the white wall, so what to do if the white wall is moldy? Let me take you to find out.

1. When the white wall has begun to mold, you can first use a toothbrush to brush away the mold, and then gently wipe it with a soft cloth dipped in alcohol, which can not only remove the mold, but also dry the wall to prevent bacteria from breeding.

2. Pour bleach and water into the watering can according to the ratio of 1:99, shake it gently, and spray it on the moldy white wall.

3. Gently wipe the moldy white wall with a rag, then rinse it with water, and then brush the mold-proof paint after the wall is dry, so that it will have a good moisture-proof effect. There is a waterproof repair agent on the market, which can be sprayed on cracked walls.

4. If the mold of the white wall is more serious, you need to buy some professional mold remover, apply it to the moldy place, and rinse it with water after a few hours, it can not only remove mold, but also effectively prevent mold.

I have introduced all the contents of what to do if the white wall is moldy, and I believe that you have a certain understanding of this through my introduction, and I hope it can help you.

1. If the area of mold is not large and the mold is presented as some small dots, rather than one by one, then it is recommended to use a small brush to brush off the mildew spots on the wall. After painting, you should also pay more attention to the ventilation of the house, otherwise the white wall will still be moldy. 2. You can use a hair dryer to blow, preferably with hot air.

Drying the mold on the wall can fade or eliminate the mold marks. 3. If the moldy area of the white wall is too large, then it is recommended to re-paint it comprehensively. It is best to ventilate for a while before painting, and wait until the moldy parts are dry before repainting.

Reasons for this:

1. It is likely that the location of the house is not so sunny, and the ventilation of the house is not often maintained. Especially in some renovated houses that no one lives in all year round, such houses are often not breathable, and it is easy to have moldy walls.

2. It is also possible that the insulation of the dry wall of the house is not done well, which will lead to cold penetration.

3. It may also be due to the aging or damage of the pipes inside the house. Because the pipes surround the whole house, once the pipes are aging, then there will be dripping or leaking. Then the whole house will be damp, and the wall skin will be easily moldy.