What if the weather is wet?

Every February and March, the weather gradually turns from cold to warm, which is a frequent period of resurgence weather. During this period, the problems that bother us come: the air is humid and sultry, the room is extremely humid, the floor, walls, ceiling, doors, closets, glass tea and so on are dripping everywhere, clothes can be wrung out after a day of air drying, and clothes and quilts feel wet.

What should we do in this resurgence weather?

How to dehumidify a room with moisture regain?

Principle of weather resurgence: the phenomenon of weather resurgence, also called resurgence, mainly occurs at the bottom of the room. There are two reasons for the warmer weather. In the first case, the cold air just left and the weather began to get warmer, but the surface temperature was still low. At this time, if the weather is humid and the relative humidity of the air is above 90%, the warm and humid outdoor airflow enters the room and meets the low temperature, smooth and non-absorbent ground, which will condense into water and gather on the floor and walls in large quantities, and then produce moisture regain or moisture regain, just like sweating. Once the climate turns fine and dry, the resurgence phenomenon can be eliminated. In the second case, the water in the foundation soil under the ground cushion rises due to capillary action, and the vaporous water permeates upward, which makes the ground material wet, and then deteriorates and makes the whole room wet. Usually, the rainy season when the weather turns warm at the turn of spring and summer is the first situation. Knowing the reason for the warmer weather, you will know how to dehumidify your home.

The solution is as follows:

1. When it is obvious that the weather is changing from cold to warm, please close all doors and windows immediately, and try not to turn on the exhaust fan except cooking, so as not to suck the humid air outside into the room.

Second, turn on the air conditioner to dehumidify. Use dehumidification equipment or refrigeration equipment to dehumidify the room. If the moisture regain is too strong, it is recommended to use a dehumidifier, and the effect will be better. It is particularly important to remember to close the doors and windows when turning on the air conditioner to promote dehumidification.

Third, use desiccant to absorb water and dehumidify. Commonly used domestic moisture absorbents include quicklime, charcoal and activated carbon. Especially quicklime, the water absorption effect is very good, but the disadvantage is that quicklime (CaO) becomes hydrated lime calcium hydroxide (Ca(OH)2) after water absorption, which cannot be reused. The moisture absorption effect of charcoal is far less than that of quicklime, but it can be reused after drying. In addition, other desiccants with slightly higher cost include silica gel, calcium chloride, alumina gel, molecular sieve and phosphorus pentoxide. The use method is to wrap the desiccant in newspaper and put it around the room or under the bed when the weather gets warmer. If a small amount of sand is mixed into the desiccant to increase the permeability of the desiccant, the moisture absorption effect can be improved.

Fourth, put desiccant beside wardrobe, electrical appliances or valuables to keep clothes dry and prevent electrical appliances from short-circuiting due to humidity. If you find that there is no image on TV when the weather comes back, you don't have to panic. Turn on the TV for 5- 10 minutes and return to normal.

5. It is usually difficult to completely dehumidify the floor of a room after it has regained moisture. You can spread some newspapers, old books, etc. Put it on the floor to absorb water. If possible, you can also sprinkle some chaff or sawdust on the floor, which can not only absorb water and dehumidify, but also prevent slippery.

This is the result of years of experience, I hope I can help you.