What Is Damp Proofing?

Moisture prevention is to prevent the humidity in the air from being too large. If the humidity of the air is too high, mold can multiply quickly. Mold can not only make the items moldy.

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Most people experience all kinds of troubles caused by mold every year: clothes often have an unpleasant smell, fear of getting in and out of public places; smelling the moldy smell of others always makes people afraid to hide; take a good look A piece of white clothing and bed sheets appeared with black, yellow, and brown spots overnight and could no longer be washed away; the beloved bags, leather clothes, and shoes had to be discarded because of their fur, discoloration, and deformation; Itching often occurs on children and themselves, which is uncomfortable and damages the skin; the odor of their feet or others is disgusting; the lens of the camera cannot be removed due to the mold on both sides and cannot be used again; the precious photo album is yellow, Spots also appeared in the photos; the collection of valuable calligraphy, stamps, coins, and thread-bound books were also moldy and damaged; the stored shiitake mushrooms, cordyceps, scallops, red dates, fungus, ginseng and valuable medicinal materials also became hairy and changed It's not good anymore ...

Many people do not know that mold is caused by high humidity in the air. Scientific research shows that when the temperature of the home environment is between 25 ° C-30 ° C and the relative humidity exceeds 60% RH, the oxygen in the air is very sufficient, and the mold will be extremely active at this time and will rapidly reproduce. Therefore, every year during the rainy season, the troubles caused by mold will widely erode people's lives. In tropical, subtropical, and temperate regions, especially coastal areas, the problem of mold caused by humidity has been a problem for people all year round. According to statistics, the global economic losses caused by humidity and mildew each year amount to hundreds of billions of dollars (only referring to households).

There are many kinds of molds. They include Ascomycetes, Algae, and Incomplete Fungi in the fungal phylum. The spread of mold mainly depends on spores. The spores are in the form of fine powder, which is difficult to observe with the naked eye. Because of its small size and light weight, it can float around with the movement of air flow, dust, human bodies and objects. During the flow process, as soon as it encounters a suitable development environment (temperature and humidity), it will immediately grow and reproduce. The mold, odor, and deformation of the object occur as a result. Mildew of the items can cause damage and uncomfortable feelings, and heavy can affect the health of the family (resulting in skin diseases and food poisoning), especially the harm to infants and young children and the elderly who are less resistant. .

There are many ways to prevent moisture and dehumidification, which can effectively improve the overall humid environment of the home.

1. Buy 10-20 kg of lime, put it in a wooden box or carton, and place it under the closet or the corner of the house. When the weather is not wet, cover it. When the weather is wet, open the cover. Do not open the large window. The lime absorbs moisture. The house was dry and pleasant.

2. Fry the sugar in a pan. Then put it in a paper bag and put it in a damp place to let it absorb moisture. Or as above, buy lime to absorb moisture.

3, often open the window to allow indoor ventilation. The underwear and trousers should be air-dried in the sun from time to time for sterilization and health care.

4. Wardrobes sold on the market are already equipped with UV disinfection lamps. You may wish to buy a UV disinfection lamp and disinfect it regularly.

5. Use a moisture-proof cabinet. Remember: Do not put food with moisture. Because the moisture-proof cabinet is different from the refrigerator, it is dehumidified at room temperature, and the preservation of freshness is achieved by cooling (the refrigerator can be kept fresh by cooling).

Due to underground moisture and moisture in the air, the indoors of the archives are susceptible to moisture, so the materials stored in the archives are susceptible to moisture and mold, which is not conducive to preservation. At present, archives in many cities still use some chemical moisture-proof materials (such as pills). They not only have the smell of volatile solids, but also the air in the storage room is very dry, the amount of negative ions is very low, and the content of inhalable particles in the air is also high It is also very detrimental to the health of archives staff.

Non-environmentally-friendly moisture-proof materials will fill the air with liquid or solid small particles. Anything small can become inhalable particulate matter. Pb, Mn, Cd, Sb, Sr, As, Ni, sulfate, polycyclic aromatic hydrocarbons are these heavily polluted things, which are generally used as environmental detection targets. The fine particles formed by the interaction of sulfur oxides, nitrogen oxides, volatile organic compounds and other compounds in the air, their chemical and physical composition vary greatly depending on the location, temperature and humidity, which is very bad for the human body. Inhalable particulate matter After being inhaled, it can accumulate in the respiratory system and cause many diseases. Exposure to coarse particles can damage the respiratory system and induce asthma. Fine particles can cause heart disease, lung disease, respiratory disease, and reduce lung function. Therefore, the risk is greater for sensitive groups such as the elderly, children, and those who already have heart and lung disease.

Therefore, the key to archives' moisture-proof work is to choose suitable environmentally-friendly moisture-proof materials.

To get rid of the damp condition of the archives, all we can do is to make the floor and walls of the archives room reasonably moisture-proof. However, some people think that the archives have already been moisture-proofed, so they do not need to be moisture-proof. This is a misunderstanding. Because, due to the relationship between professional fields, it is very easy for people to confuse the concepts of moisture resistance and waterproofing. Waterproof materials and construction methods are often used to deal with moisture resistance. This not only fails to get a good moisture-proof effect, but also results in irreparable consequences. What the moisture-proof needs to solve is to prevent the moisture (water vapor) from entering the archives room, and the waterproof solves the problem of preventing liquid water from seeping into the archives room. Generally, the requirements for moisture resistance are much higher than those for waterproofing. The molecular density of the waterproof layer is difficult to prevent water vapor from passing through. Moisture prevention is a concealed project that needs to be handled on the base surface. If problems are found after the archives become wet, it is usually very difficult to make up for them, and the price paid is also high.

To solve the problem of moisture resistance in archives, we have to choose a few points to consider: The moisture-proof material must be environmentally friendly and green, and the moisture-proof ability should be 100% moisture-proof. The longer the moisture-proof period, the better, and it is best to be permanent.

1) Moisture proofing in the kitchen <br /> The heavy moisture in the kitchen will attract cockroaches and ants, and the moisture proofing situation is more serious. It is recommended to turn on the exhaust fan or use the fan to blow. In addition, materials can be collected locally and waste can be reused. Such as baking powder commonly used in the kitchen can absorb moisture. Those who love to make coffee can also put used coffee grounds in gauze bags, clean old stockings or cotton socks, and make small dehumidification bags that are easy to use and have the dual effects of moisture absorption and deodorization, and put them in the corner of the kitchen in.
2) Moisture-proof food and medicine <br /> Food should be kept in the refrigerator as much as possible. Sausage, ham and other meat marinated foods can be dipped in a little vegetable oil with cotton swabs, spread evenly on the surface, and then hang it in a well-ventilated place to prevent mildew; ^[1] shiitake mushrooms should be stored in sealed containers If the surface has mildew, you can brush it and bake it. Do not wash it. Putting a little kelp into the rice can kill the pests and inhibit the mold.
Sugar-coated tablets, granules (capsules), capsules, and effervescent tablets in western medicine are prone to moisture deterioration. Household medicines can be stored in fresh-keeping bags, and some medicines can also be stored in capped glass bottles or sealed plastic boxes, or some safe desiccants can be added. For Chinese medicinal materials, if there is a large amount of medicinal materials, they can be stored in a sealed box in a centralized manner; if the amount is small and the medicinal materials are more general, they can be stored in a refrigerator; however, for more expensive medicinal materials, such as cordyceps, velvet antler, etc., a sealed bag can be used first Encapsulated or wrapped in moisture-proof paper and placed in the bottom of the rice cylinder.
3) Moisture-proof in the bathroom <br /> The toilet is the most humid space in the living room. What is the most common phenomenon such as "sweating" on the wall and the mirror in "Southern Sky"?
Anti-seepage and mildew resistance of tiles: The walls of the bathroom are mostly covered with tiles. In order to keep them clean and beautiful, you can use multifunctional decontamination paste to clean them. For the gaps in the tiles, you can use a toothbrush to dipped in a little decontamination paste. Then brush a waterproof agent with a brush in the gap. This will not only prevent seepage, but also mold growth.
Ceramic bathroom mold proofing: how to make ceramic bathroom products as bright as new? A convenient and environmentally friendly method is to wipe with white vinegar and lemon peel. The specific method is to first clean the dirt on the surface of the sanitary ware, and then wipe the surface of the sanitary ware with a soft cloth dipped in white vinegar or directly wipe it with lemon peel. After a few minutes, the sanitary ware will say goodbye.
Bathroom cabinet moisture-proof: For bathrooms without wet and dry partitions, the best choice of bathroom cabinet panels is professional moisture-proof panels. In daily life, especially in spring, care must be taken to keep its surface dry. After each wash, wipe off any water droplets attached to it with a dry cloth.
The overall space is moisture-proof: As the space with the most water vapor, the most basic way to prevent moisture and mildew in the bathroom is to keep the ventilation dry. However, in "Back to Nantian", it is not suitable to open the window for ventilation. This will bring in outdoor moisture. The best way is to turn on a dehumidifier or air conditioner for forced dehumidification.

The "Residential Building Code" (GB50368-2005) stipulates that the roof, exterior wall and exterior windows of a residence shall be able to prevent rainwater and melting snow from entering the room. Condensation shall not occur on the inner surfaces of residential roofs and exterior walls under the conditions of indoor temperature and humidity design. ^[2]

4) Furniture and clothing have a good idea to prevent moisture

The rainy season in May has arrived. Many cities in the south, such as Guangzhou and Haikou, are either rainy or rainy. After a few days in a row, you will find water droplets, clothes and The home even started to mold. In fact, this is the phenomenon of ebb tide in the rainy season in southern cities, but if we do not handle it properly, our clothes and homes will be damaged. Living in such an environment will also affect our physical health. Today, I will share with you the tricks of removing moisture from your home and saving clothes that have been affected by mildew.

The living room, bedroom, and study should be moisture-proof. The overall direction is moisture-proof: intermittent ventilation, placing green plants to achieve the ideal moisture-proof effect, and the home's moisture-proof work must be adapted to local conditions. No matter what the weather is, the bedroom, living room, and study are not very humid, and are not as difficult to deal with as the bathroom and kitchen. Therefore, no special moisture-proof measures are required for bedrooms, living rooms, and study rooms. It is sufficient to do basic things. When the weather is fine, open all doors and windows to accelerate the evaporation of moisture in the room, but the air humidity outside at noon is at the highest value. It is not recommended to open the window, preferably in the afternoon or evening.
It is also a good idea to put green plants, such as asparagus, spring taro, monstera, and rich bamboo, in the living room, bedroom, and study to absorb moisture. However, pay attention to the location, as books stacked in the study room are the easiest to absorb moisture, and flower pots must not be placed near bookshelves. Do nt forget to take it outside when you water it, leave it for a while, and then move it back inside.

Leather furniture: Desiccant desiccant works best. Symptoms: Leather of leather furniture will harden when it gets wet, and mold spots will appear on some less ventilated surfaces. Even damp, it will easily cause deformation or discoloration of colored leather.
Coping with small tricks: It is best to smear special maintenance mink oil, sheep oil, leather oil, etc. on the surface after dust removal. The surface moisture can be wiped with a soft dry cloth, while the mold spots can be removed with a mildew remover and then coated with leather maintenance oil; for leather sofas, consider putting some desiccant in place to keep it dry.

Solid wood furniture: use moisture-absorbing paper to stick the surface to prevent moisture and symptoms: Nowadays, many solid wood furniture have undergone strict drying procedures before leaving the factory, but this does not mean that moisture-proof care can be performed infrequently.
Coping with small tricks: Solid wood furniture should be maintained with special cleaners. You can use protective wax or a special cleaner to evenly coat the furniture surface, and then gently wipe it to maintain its gloss and moisture resistance; If the edges are not good or damp, it is easy to absorb water and cause the furniture panel to swell and damage. When using it, pay attention to waterproofing. Install waterproof pads under the legs that easily absorb water, and keep a good ventilation distance near the outer wall and the bathroom wall.

Rescuing "Problem Clothing":
Remove moisture: If you notice any signs of wet clothes, immediately take them out of the closet and hang them in a ventilated place to prevent the clothes from getting wet further. If you have a dryer at home, you can dry them, or use electric fans or electricity. Blow dry. It can also be washed and dried in a dry cleaner to prevent further mildew.
Removal of mildew: In the rainy season, the washed clothes are not easy to dry, which will produce an unpleasant musty smell. You can wash your clothes in water with a small amount of vinegar and milk to remove the mildew.
Remove mildew cotton clothes: You can use a few mung bean sprouts, rub repeatedly on the spot with mildew, and then rinse it with water, the mildew will be removed. If your clothes or sheets have yellow marks, you can apply some milk, put them in the sun for several hours, and wash them again.
Woolen clothes: First put the clothes in the sun for a few hours. After drying, wipe off the mildew spots with a brush. If it is caused by oil or sweat, you can easily remove it with a soft-bristle brush or cotton dipped in petrol, and repeatedly scrubbing and wiping the place with mold.
Leather clothes: first wipe with soap and water repeatedly and then clean with water. After partial treatment of cotton and woolen clothes, remember to do a comprehensive cleaning again, so that you can fully save the clothes.