Causes of mold on the wall, how is mold on the wall caused?

There is mold on the wall1. In the rainy season or rainy days, the rainwater enters the room from the cracks in the wall, which causes dampness around the window, and mildew will appear after a long time.

2. If you don't pay attention to ventilation, the indoor humidity will be too large, and the wall will be easy to get wet, resulting in the phenomenon of stupidity on the wall. In addition, the summer time in the south is long, the air humidity is high, and the air in the coastal areas is humid, so the wall is also prone to mold during the rainy season in the south.

3. The insulation of the external wall is not enough, if the insulation layer of the wall is not done well, it is easy to appear that the wall is cold and cold, and the water vapor in the house is turned into water droplets, and the wall is easy to be damp and moldy.

In the rainy season, the musty smell is particularly strong, and there are many reasons for the mold of the wall, so in order to solve this problem, first consider how the wall is moldy. It may be that the water pipe joints installed in the ground or inside the wall will seep water if they are not connected properly, or it may be that the waterproofing of the external wall is not done well or aging, resulting in water seepage in the wall. Therefore, in order to solve the problem of mold on the wall, we must first solve the problem of waterproofing and water seepage.

Finally, the problem of mold on the wall is solved. After the waterproof problem and water seepage problem are solved, the moldy wall can be removed as a whole, and then the wall as a whole can be brushed with waterproof paint twice, and finally the wall can be painted with waterproof putty and the interior wall paint is OK. In this way, the musty smell is naturally gone.

Answer: Hello, your question is being sorted out, please wait a while, wait patiently 3, the wall insulation is not enough, the temperature difference between indoor and outdoor is large, the air in the house will condense into water droplets after encountering the cold air outside, and the wall will be damp and moldy. The change of seasons can also lead to temperature differences, which can cause dampness on the walls.

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1. External factors: excessive humidity; Huinantian is a weather resurgence phenomenon, where the excessive concentration of moisture in the air will condense and produce water droplets on the surface of overcooled objects, such as wall paint. When water vapor adheres to and infiltrates the surface of the wall paint film for a long time, it is easy to induce mold on the surface of the paint film.

Generally, at this time, it is easy to cause mold due to excessive humidity, and there are three places, namely the ceiling, the area near the water and the dark corner. When ventilation is poor or the temperature is low, mold is more likely to appear.

2. Internal factors: the quality of wall paint is not up to standard; The antibacterial and anti-mildew performance of the coating product itself is poor, and water vapor can easily penetrate into the inner layer of the wall, resulting in the growth of mold. Improper operation in the construction process is also easy to cause mildew in the paint film in Huinantian, such as:

Excessive dilution of paint, application when excessive humidity, etc.

3. Close the window in the morning and evening to reduce the moisture entering the room: the harm of humid weather to the wall is serious, and the first thing is to prevent the humid air from entering the room. When it comes back to the south, remember to close the windows of your home.

It is a window facing south and southeast and does not give moist air a chance to sneak in. The windows are closed in the morning and evening every day, and can be opened at noon and for short periods of time.

4. Use desiccant and other products to absorb moisture: some desiccant, moisture absorber boxes and other supplies can be bought in supermarkets and other places, and reasonable use can reduce the moisture in the home to a certain extent. In addition, you can also make your own moisture absorber box from lime, laundry detergent, etc.

Question: The wall is skinned, and there are white and hairy things, and there are small insects on them, which are very small.

Smell and cover it, it smells musty.

Because of what, how to deal with it.

Answer: Wipe off mildew spots on the wall with a wet towel and a little dish soap. If the mold is not very serious, it can be wiped clean. Brushes are not recommended and may cause mold to be everywhere indoors.

This can be prevented by using a wet towel, but you should also wear a mask when washing, and preferably glasses.

The skin of the question wall has fallen off.

leak the wall underneath.

What are small bugs.

It may be caused by too much moisture in the house, go to the supermarket and buy a spray bottle that can be pumped and a bottle of bleach, preferably with a high concentration. Dilute a small amount with the stock solution or palm and spray it on the moldy ceiling or wall a few times and you'll be fine. After an hour, I saw good results.

The moisture is too heavy, and the wall is not completely dry with cement, so paint or latex paint is painted.

In recent years, with the rapid development of the city, the old building materials have been slowly replaced, and a large number of new building energy-saving materials have been adopted. However, in the process of use, there are often wall leakage, mold and hair, etc., and it has attracted great attention from experts and scholars in China's engineering industry, and has become a problem that has plagued the industry for many years. Based on our years of research, it is outlined below:

The existing decoration building system has the problems of water leakage and mold breeding between the door and window frame and the wall, and the leakage between the door, window and the wall is more serious in the humid and rainy environment in the south. In the north, the temperature difference is too large within a year, resulting in the growth of mold in windows and walls. The generation of these problems has its unique commonality, now the brick-concrete and concrete structure accounts for the vast majority of the proportion in the building, in these buildings, because of many reasons, the door and the window reserve space is larger, which is easy to cause the door and window to be installed can not be combined with the door edge, the window edge is very good, these gaps will generally be supplemented with fillers and sundries, and then leveled with cement, in the future use process, due to the inconsistency of the thermal expansion coefficient, and moisture, indoor and outdoor air circulation and other problems, it is very easy to produce cracks, Infiltration and other phenomena lead to the asymmetrical exchange of water and air, forming a cold bridge, and the cold bridge phenomenon of reinforced concrete structure houses mostly occurs between beams and columns and floor slabs, while brick-concrete structure houses mostly occur at the beams. In addition, the insulation of the wall itself cannot meet the regional standard due to various reasons, resulting in the phenomenon of cold penetration of the wall and slow frost condensation.

Wall penetration will make the wall cold, coupled with the warm indoor air and high water vapor saturation, it is easy to produce wall crystals, and then the wall water vapor is retained, resulting in mold. This will inevitably happen when the wall is not tightly sealed and there is a gap between the door frame and the wall. In the south, due to the high humidity of the air, the direct penetration of water vapor is the main manifestation, while in the north, due to the temperature, the wall forms a cold bridge, cold penetration, frost, condensation, etc.

If the walls are already moldy, you need to use a professional mold removal product, Anti-Mold No. 1, to solve the problem.

Many people's home walls often appear peeling and moldy, what is the reason for this? There are many reasons why a wall can become moldy. Mold not only affects the aesthetics of the room, but mold on the walls can cause great harm to human health.

Mold on the wall can easily grow and spread in a suitable environment. So what causes mold on the wall? Here's what we've put together for you, I hope it will be useful to you.

What is the cause of moldy on the wall: most of the houses are frame structures, the walls are filled with walls, and the joints between the walls and beams and columns are prone to cracks, which is the weak point of insulation and waterproofing. Water seeps in summer, and cold in winter.

2. Construction reasons: the exterior wall brick inlay is not real, the brick joint is not filled or the use of filling; The mortar of the outer filling wall tiles is not full, and there are trachomaes and gaps, forming cold (hot) bridges; The joint between the wall and the beam and column is not densely filled and there are cracks; When installing doors and windows, the foam filling is not dense and there are gaps. 3. Environmental reasons:

Summers in the south are rainy and the air humidity is high. The coastal areas have a cold climate in winter. The walls are cool, the indoor temperature is high, and it is easy to deposit dew.

The insulation of the exterior wall itself is not good, which leads to the cold penetration of the wall, resulting in an increase in the humidity of the wall. Water vapor in the room will crystallize into water droplets on the wall, and mold will grow when damp. Wall mold treatment method 1

If the mold on the wall is not severe, it can be wiped off with a damp cloth or washed with water. If it can't be removed completely, it can also be cleaned with bleach to remove mold. 2. If you can't clean the mildew on the wall with water, it's best to scrape off the mildew on the wall and brush it again.

3.It is recommended that you apply waterproof paint, latex paint, etc. to the wall, so that you can do it once and for all, and you will not be afraid of this problem in the future! 4.

Finally, remind everyone that in order to prevent mold on the walls, the best way is to ventilate frequently and keep the room clean and tidy, so that the indoor walls will not become moldy, and there is no need to worry about it. Serious hazards of wall mold: long-term contact and inhalation of mold can cause respiratory diseases and allergic symptoms, such as bronchitis, tonsillitis, hay fever, asthma, etc.; People with low immunity may also cause headaches, fevers, or inflammation of mucous membranes.

According to confirmation from China's National Institute of Health Sciences, researchers surveyed 1,100 adults with asthma and found that those who were allergic to mold, which can harbor large numbers of hepatitis and influenza viruses, were five times more likely than them. Medical authoritative experts remind: always pay attention to the removal of mold in the residence.

The phenomenon of mold on the wall is not strange to us in the south! The landlord's primer must not have been brushed. The main problem is that the wall insulation is not done well, which leads to cold penetration, and the phenomenon of cold penetration is mold, blackening and hairy on the indoor wall.

The reason is that the indoor air is warm and the water vapor saturation is high, and the wall is not well insulated due to the rolling pin, so the wall is cold, and the water vapor will crystallize into water droplets on the wall, and the wall will become moldy and hairy when it is wet.

Dampness is the main cause of mold. On southerly days, the air humidity is very high, and the walls and ceilings are prone to condensation, causing dampness and slowly causing mildew of mountain silver. In this case, it is advisable to strengthen the interior wall insulation by using a dynamic insulation wall panel to prevent the formation of a humid environment and prevent the wall from becoming moldy.

First of all, you have to check whether the outer wall of the room is seeping, and the second is whether there is any water leakage in the upstairs of your house, causing water seepage in the corner of your house. Again, ask if there have been dirty things in the room that have been installed with Wei Zhaoxiu or the wall has oil stains, etc., when you have these things in the wall base and have not been cleaned, the situation you said will appear when the tide occurs. If you want to solve it, you must find the root cause of the occurrence, otherwise you can only manage it for three to five days if you rush to repair it.

Find the cause and then find the painting workers to reprocess, the workers know how to do it, just keep an eye on it when renovating.

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