It has been 1 year since the renovation of the new house, what is the cause of mold on the wall?

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1. Environmental reasons.

Soon after the new house was occupied, the walls were moldy, probably due to environmental reasons. For example, in the rainy season in the south, there is a lot of rain and high air humidity, especially for the residents on the ground floor, the wall is damp and poorly ventilated, and the wall is easy to form water droplets, and after a long time, it will become moldy.

2. Reasons for residence.

The moldy walls of the new house are also related to living habits, such as poor ventilation in the home itself, and poor ventilation conditions in the home, which will cause high indoor humidity, resulting in moldy walls. Therefore, in daily life, we should also pay attention to opening windows for ventilation to avoid mold on the wall.

3. Structural reasons.

The mold of the wall of the new house may be caused by the cracks in the structure of the house, because the building walls are now framed structure, such as the cracking of the infill wall and the connection between the beams and columns, and the water seepage will also cause the wall to become moldy. In addition, if there are cracks around the windows, rainwater will also cause dampness on the interior walls, resulting in mold.

4. Construction reasons.

Mold on the wall of the new house may be the cause of construction, such as the construction personnel cutting corners, the external wall tiles are not laid or the mortar filling is not full, etc., which will cause the wall to leak, resulting in mold.

5. The insulation of the external wall is not enough.

The appearance of mildew on the wall of the new house may be due to the non-standard construction of the insulation layer during the construction of the wall, which causes the wall to be breathable and cold, resulting in the water vapor on the indoor wall becoming water droplets, and mildew due to moisture.

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After the renovation of the new house, after moving in for a year, the wall appears moldy, which may be a resurgence of moisture, or it may be a water leak and rainy day, and the rainwater will penetrate into the wall.

It may be due to the humid environment at home, or the air at home is relatively humid, or the drainage system at home is not particularly good, so it will lead to moldy walls.

It may be caused by the high humidity in the home, or it may be caused by the humid air in the home.

I don't know what's going on on on with the wall near the window of my friend's house, the wall is moldy, it looks ugly and ugly, and there is a bad smell when you get closer. What should I do? A friend asked the master to come and see, and the master said that he had to shovel and repaint the wall, and he had to collect 3,000 yuan!

My friend thinks that it is troublesome and expensive to shovel and repaint the wall, so is there no other way?

The main reasons for the mold on the wall are: the insulation layer of the wall is not done well, the wall is prone to cold and cold, the temperature difference between indoor and outdoor is large, and the water vapor in the house is condensed and called water droplets, which are attached to the wall and are prone to mold on the wall. Rainwater leaks into the house and causes mold on the wall, which generally appears on the wall near the window, because the sealing of the window is not done, and only the sealing of the window needs to be redone.

This situation like my friend's house is due to environmental factors, because her house is in the southern region, and it rains more frequently in winter, so it leads to mold on the wall, and this situation is the easiest to solve. If the wall is moldy, don't rush to find a master to shovel it off and repaint the wall, the little expert in home magic tricks will teach you a trick, spend 8 yuan to buy a bottle of 84 disinfectant, and you can solve the problem in 2 minutes, which is simple and fast and does not cost much!

The specific method is to dilute the 84 disinfectant solution in proportion to water, soak the clean rag in the diluted water, wring it out and wipe it gently, so that the mildew will be removed. If the mildew on the wall is more serious, prepare a small spray bottle, dilute the water and disinfectant in proportion, and then spray it on the wall, wait for 2 minutes and then wipe the wall, and it will be cleaned.

It should be noted here that you must wear protective tools when using disinfectant, rubber gloves and masks are essential, as we all know, the smell of disinfectant is very pungent, and the smell is harmful to the human body, so tools are essential! You must be careful!

Isn't it easy? This situation is only suitable for the case of mildew on the wall, and if it is too serious, you need to find a master

1. Poor water resistance of putty for scraping walls; 2. When the base layer of the wall is treated, the follow-up construction layer treatment is carried out after the base layer is not dry, and the internal moisture causes mildew; 3. The waterproof layer is cracked, the waterproof sealing of the contact part between the window frame and the wall is not strict, and the water pipes and heating pipes leak, etc., cause the wall to be damp and mildew.

It is because there is a problem with the selection of materials and the problem with the waterproof treatment, and the wall should be re-decorated for waterproofing.

It needs to be renovated, and the wall needs to be waterproofed, so as to effectively avoid mold.

Causes of mold on the wall:

1.Rainwater seeps in.

During the rainy season or rainy days, rainwater enters the room through cracks in the walls, causing dampness around the windows, and mildew will appear over time.

2.Insufficient insulation of exterior walls.

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 will become water droplets, and the wall will be easy to be damp and mildew.

3.Waterproof is not good.

If the waterproofing of the ceiling surface is not done well, there will be water leakage and mold.

4.Environmental factors.

Usually, if we don't pay attention to ventilation when we live, the indoor humidity will be too large, and the wall will be easy to get wet, resulting in moldy 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.

Solution:1Simple handling.

If there is only a slight mildew on the surface, we can use a toothbrush to brush off the mildew, then take a rag dipped in water and wring it out and wipe it gently.

2.How to deal with seasonal reasons.

If this is the case, we should not rush to repair it first, but wait for the water on the wall to evaporate before painting and repairing.

3.Caused by insufficient insulation measures.

First of all, we need to determine whether the lower wall has been insulated, and we can make a judgment by gently knocking on the wall. If the sound is empty after tapping, it means that the wall has an insulation layer, and if the sound is dull, 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.

4.Replace interior wall paints with better waterproofness.

When the wall is dry, we can repaint it with a waterproof coating.

After the decoration of the new house, if it is found that the wall is moldy, it is necessary to take measures to solve it in time, otherwise it will not only affect the beauty of the whole room, but also cause adverse effects on people's health.

First of all, it is necessary to locate the cause of mold on the wall. Generally speaking, mold on the wall may be caused by dampness or poor ventilation of the wall. If it is caused by the dampness of the wall, dehumidification treatment can be considered; If it is poorly ventilated, it needs to be strengthened.

Secondly, the walls need to be cleaned. It can be cleaned and deodorized using bleach, vinegar, tea, etc. When cleaning, be careful not to scratch or damage the wall. If the wall is too severe, it can be treated with a professional mold remover.

Third, keep the room ventilated and dry. Opening windows regularly, especially during wet weather and the rainy season, will not only reduce the likelihood of mold on the walls, but also improve indoor air quality. At the same time, pay attention to the humidity in the room, and try to avoid activities such as drying clothes in the room.

Finally, solve the problem with "anti-mold" measures. It is possible to add a moisture-proof mat between the furniture and the wall or use an anti-mold agent. These measures can help keep the interior dry and clean and avoid the problem of mold on the walls.

In short, mold on the wall is a relatively common problem that needs to be dealt with in time. Through the above measures, you can effectively avoid mold on the wall and ensure the health and comfort of the indoor environment.

Re-painting: Solve the mold of the wall by re-painting the latex paint. When repairing, you need to pay attention to the temperature and humidity during construction, after painting, the wall needs five or six days to completely dry in spring and autumn, and in summer it only takes about 3 days, the main thing is that if the temperature in the room is lower than 5 degrees, you can no longer paint, it takes a long time to dry.

When touching up the paint, you can only brush the part that is in trouble.

If the wallpaper on the wall is moldy, then the wallpaper must be replaced. The lifespan of the wallpaper itself is not long, and it must be completely replaced after being wet. Because of the different production batches of wallpaper, only part of it cannot be changed like latex paint, and it is easy to have color differences.

So at least the entire wall should be replaced.

Mould on the walls is one of the most common problems, especially in wet seasons and places. It is undoubtedly very distressing for the mold problem in the newly renovated house. Here are a few ways to solve the problem of mold on your walls.

1.Keep ventilated and dry.

Keeping your room ventilated and dry is the most basic way to prevent mold, and you can keep the room well ventilated by opening windows or installing equipment such as an air purifier. Hanging a moisture absorber or turning on a humidifier can also help control humidity.

2.Cleaning and maintenance.

Cleaning the room to remove dust, dirt and weeds can also damage the living environment of mold. For some of the walls that have formed mold, you can mix acetic acid and water and gently brush the wall.

3.Replace wallpaper, paint, etc.

If you find that the mold on the wall is already serious, it is recommended to replace the wallpaper, paint and other materials to prevent the mold from growing again. When replacing new materials, it is recommended to choose moisture-proof, mildew-proof, and breathable materials for decoration.

4.Clean up wet areas.

Moist areas are the most likely areas for mold to grow, so care needs to be taken to clean up to prevent mold growth. Damp walls can be dried with equipment such as fans or hair dryers.

5.Professionally handled.

For walls that have become severely moldy, they need to be professionally treated. You can ask a professional anti-mildew company or a decoration company to deal with it, and they will take appropriate treatment measures according to the condition and severity of the wall.

In short, after decorating the house, you need to deal with the mold on the wall in time, and it is the best way to prevent mold, and all kinds of treatment methods are to prevent mold from growing again.

It is because it often rains, and the weather is very humid, or the insulation layer of the wall is not good enough, and the quality of the wall is not good, and it may be the way of rain, and it is the phenomenon that the wall is cold, so it will lead to moldy ceiling on the wall.

It is likely that the waterproofing of the wall is not good enough, so you should re-do the waterproofing to make your home drier.

It may be that there is a lot of rain, so some rainwater seeps in from the roof and walls, which causes the home to be very damp, and there will be some moldy conditions.

Mold on walls is a common problem, especially in humid environments. If you have just finished renovating your home and find that the walls are moldy, you can try the following methods to solve this problem.

1.Clean the walls.

The first thing to do is to clean the walls thoroughly to remove existing mold and spores. You can use a mixture of bleach and water to clean the walls, or you can buy specialized anti-mold agents that can quickly remove mold and prevent them from regenerating.

2.Excludes moisture.

Try to determine the cause of the mold on the wall behind you, which is usually related to dampness. If the air humidity is high, you can try buying a dehumidifier to reduce the humidity. If the problem is coming from inside the wall, you need to find the leak and fix it to make sure there is no water inside.

3.Wall treatment.

If the wall is very severe, you may want to consider repainting or painting. When choosing a paint or wallpaper, you should choose a product that will prevent mold. Walls can also be coated with anti-mold paint, which inhibits mold and algae growth.

4.Maintain good ventilation.

It is also very important to maintain good ventilation. In rooms with humid environments, such as bathrooms and kitchens, it is advisable to install exhaust fans and keep them clean. If you use a hygrometer and find high humidity in your room, opening windows for ventilation is also a good option.

In general, there are a variety of ways to deal with moldy walls. Once the cause has been identified, it is possible to select an effective solution or find a professional to deal with it. The point is to give things enough time to work out, because when dealing with moldy walls, it takes patience and patience to fix it.