Why is my room always moldy?
Specifically:
First, the reason why the room is moldy:
1. When decorating, the wall is not completely dry, so we have to shovel it off and redo the wall in spring.
Next to the wall is the bathroom. This wall is not waterproof. If it is wet, waterproof the bathroom again.
The water pipe buried in the wall is leaking. Find the leak and repair it.
4. There is no insulation layer on the wall, so the warm indoor air will condense into steam when it meets the cold wall, and it can be added as an insulation wall if conditions permit. If not, you can apply a waterproof coating on the wall, which will have a certain effect after being diluted with two-component oriental rain rainbow.
Second, the solution to the moldy room:
1, use dehumidifier. When the room is wet, desiccant and activated carbon can be used to prevent moisture and absorb moisture. Desiccant and activated carbon can be used. There are many desiccants specially used for moisture prevention and dehumidification in supermarkets, the most common ones are moisture absorption boxes and dehumidification bags.
2. Buy an air dehumidifier, which is like a vacuum cleaner. It can concentrate humid air together, and when the humidity turns into water in many cases. Air conditioning dehumidification. Household air conditioners generally have the function of dehumidification. However, it takes two or three hours for the air conditioner to adjust the indoor air humidity, and it will make people feel very cold indoors.
3. Dehumidify with lime and bamboo charcoal. Fill a small cloth bag with a proper amount of lime, tie it into a small bag and put it in every corner of the room. Lime itself has the function of absorbing water, and can also slow down the indoor humidity. At the same time, lime also has disinfection function, killing two birds with one stone. Bamboo charcoal dehumidification can be used repeatedly, but it needs to be used more. Without it, the effect is not so good.
4. When the external humidity is high, doors and windows should be closed to prevent dampness and damp. Usually, more windows should be opened for ventilation to reduce indoor water vapor content. Especially in newly renovated houses, the humidity is particularly strong, and more ventilation is needed to eliminate the humidity.
3. Buy an air dehumidifier, which is like a vacuum cleaner. It can collect moist air together, and when the moisture turns into water in many cases.
4. Dehumidify with air conditioner. Household air conditioners generally have the function of dehumidification. However, it takes two or three hours for the air conditioner to adjust the indoor air humidity, and it will make people feel very cold indoors.
5. When the external humidity is high, the doors and windows should be closed to prevent damp and damp. Usually, more windows should be opened for ventilation to reduce the indoor water vapor content. Especially in newly renovated houses, the water vapor is particularly strong and needs more ventilation to eliminate moisture.
6. When the indoor humidity is too high, if you don't use a computer or TV, you'd better make a protective cover to prevent the rear of the electrical appliance from touching the humid air. These appliances should be turned on often. The heat generated when the machine is running can effectively disperse moisture.
7. When the indoor humidity is too high, resulting in excessive humidity, it will lead to the phenomenon that the wet wall is moldy and hairy. When indoor mold spreads, it will have a very bad influence on people's health, especially those who are allergic to skin.
8. When there is mold on the wall, you can first brush off the mold stains with a dry toothbrush, and then gently wipe them with a soft cloth dipped in alcohol, so as to dry the wall and prevent mold from breeding.
9. In addition, for the problem of moldy walls, bleach and water can be added according to the ratio of 1:99, mixed into a water agent, poured into a spray bottle and sprayed on moldy walls. If the weather is still wet, bleach and water can be mixed according to the ratio of 1: 20 and smeared on moldy walls. After the wall is dry, smooth it with sandpaper, then brush a layer of waterproof primer and finally a layer of latex paint.
10. Finally, the room should be cleaned frequently, and prevention should be given priority. Do more cleaning, clean corners, walls and other places that are easy to get wet, and delay getting wet. Wipe the wet place with a dry cloth.
Extended data
Molding is a common natural phenomenon, which often appears in food. Food contains a certain amount of starch and protein, and more or less contains some water. The growth and development of molds and eggs need water and warm temperature. Moulds and eggs with low water activity value can't absorb water, but when the water activity value increases after being wetted, moulds and eggs will absorb water in food, and then decompose and eat nutrients in food. Wooden furniture, clothes, etc. It is easy to get moldy after being wet for a long time.
If you can't finish eating apples at home for a while, some apples will become moldy after a while. Old people often peel off the rotten parts of apples and eat them, which is inappropriate.
Because, the remaining "non-rotten part" has been soaked in various harmful substances produced in the process of microbial metabolism, but it is just invisible to the naked eye. When the temperature reaches a certain level, various microorganisms, especially molds, multiply in large numbers, producing toxic substances. For example, there is a cold medicine that is harmful to the human body. If eaten, it will leave behind future troubles, causing symptoms of nerve, respiratory and urinary system damage, making people nervous paralysis, pulmonary edema, renal failure, and even cancer. Therefore, rotten apples and moth-eaten apples are not suitable for eating, especially bitter ones. In some places, people call winter mildew, which is called winter mildew; In some cases, when mold naturally withers, people usually call it Xie mold.
Mildew index
With the arrival of rain solar terms, the south has entered the rainy season, and these rainy days have made the air extremely humid. Because of the heavy rain and high air humidity, things at home are easy to get moldy. Grain mildew, causing waste; When drugs are moldy, they will go bad. Preventing mildew is not only a concern of large storage departments, but also very important for ordinary people who live at home.
According to the meteorological environment conditions that are prone to mildew, the meteorological department has formulated the mildew index. How to use mildew index? When the mildew index is 0, it is generally not easy to mildew; When the mildew index is 1-7, mild mildew is easy to occur. At this time, it is necessary to ventilate the goods and reduce the speed of mildew. When the mildew index is 8- 13, moderate mildew is easy to occur, and the goods should be stored in a low temperature environment; When the mildew index is 14-20, serious mildew will occur. At this time, the goods should be placed in a sealed environment to prevent moisture from invading and accelerate mildew.
The mildew of articles is caused by the reproduction and growth of microorganisms on articles (such as food, cigarettes, textiles, etc.). ) under certain temperature conditions. Generally speaking, microorganisms can be divided into four categories according to their effects on goods and human beings: ① pathogenic microorganisms refer to those microbial groups that make human beings sick; (2) Corrupt microorganisms refer to microorganisms that cause food and other moldy articles to deteriorate; (3) Ineffective microorganisms, whose existence is neither harmful nor beneficial to human beings; (4) Beneficial microorganisms refer to microbial groups that are beneficial to human beings. The molds that usually cause mildew of articles can be subdivided into four categories: Mucor, Rhizopus, Aspergillus and Monascus.
The mildew of articles is not only related to the environmental temperature, but also closely related to their own water content and water vapor content in the air. According to the research, mildew of different articles requires different temperature and humidity conditions. For example, when the temperature of the grain depot is between 20℃ and 35℃ and the relative humidity is greater than or equal to 85%, the grain is prone to mildew. When the temperature reaches 65438 05℃ and the relative humidity is greater than or equal to 85%, cigarettes and other commodities will be mildewed. That is to say, when the temperature is high and the relative humidity in the air is low, mold can also adhere to the surface of the object to reproduce and grow. For most other commodities except food, when the temperature is
Mould likes temperature and humidity, and it also consumes oxygen. For most storage items, considering the storage cost, it is impossible to store them in a sealed oxygen-free environment, so the effective way to solve the loss caused by mildew and deterioration is to change the environmental temperature and humidity. Therefore, it is particularly important to study the meteorological indicators of mildew in storage space and make predictions.
The analysis shows that the mildew frequency in Jiangnan area is 34% from May to September, that is, about one third of the time in summer. The proper combination of temperature, humidity and water vapor content in the air will easily lead to mildew of most items stored in the warehouse, especially in July and August, the mildew frequency under temperature and humidity conditions is above 60%, and at other times it is below 20%. It can be seen that the time when articles are prone to mildew is mainly concentrated in July and August. Therefore, we should always check the items stored indoors in July and August. Conditional warehouses should cool down and reduce humidity, and timely clean and dry moldy articles in sunny weather to avoid indoor moldy articles from rotting for a long time and reduce the losses caused by mildew.
Baidu Encyclopedia: Moldy