How long will Guangzhou return to Nantian in 2022?
How long will Guangzhou return to the South in 2022?
It lasts for 3 to 5 days. Returning to Nantian often occurs in the season of alternating February and March, and generally ends in April. Generally, if it is supplemented by cold air, it will disappear immediately after returning to Nantian. If you keep warm, it can last for 3-5 days. Can grow for more than half a month.
Returning to Nantian is a phenomenon of warmer weather, which generally appears in February and March in spring. The main reason is that after the cold air leaves, the warm and humid airflow quickly counterattacks, resulting in an increase in temperature and air humidity. Some cold objects are easy to produce water droplets when they encounter warm and humid airflow. The tropic of cancer in the south is more serious, which is related to the sea and humid air in the south. When "Returning to the South Sky" appeared, the air humidity was close to saturation, and the walls and even the ground would "boil water". Everywhere is wet, and the air seems to be able to wring water out. Dense fog is the most distinctive appearance of "returning to the south sky" According to statistics, when the phenomenon of returning to the south is serious, the visibility can be reduced to 50 meters.
The main reasons for the formation of huinantian
In spring, water will come out from the walls and floors in the southern sky, which is actually very similar to the principle of sea fog. Warm and humid ocean air flows from the warmer sea surface to the colder sea surface, and the water vapor in the air condenses into water droplets and accumulates in the air to form fog. If the temperature difference between the sea surface through which the airflow passes is large, there is a greater chance of forming fog.
Similarly, due to the cold weather in winter, the walls and floors are very cold inside and outside. If warm and humid air flows through the walls and floors at this time, the water in the air will condense into water droplets and adhere to the walls and floors, just as water seeps from the walls and floors. In summer, even if there is humid ocean airflow, the walls and floors are not cold enough inside and outside, and the walls and floors will not get out of water.
Generally speaking, there are two main conditions for the formation of returning to Nantian:
1, there is a long period of low temperature, and the daily average weather is lower than 12 degrees Celsius, and it must last for at least 3 days.
2, the weather changes suddenly, and it will suddenly become warm and wet after a long period of low temperature.
How does Huinantian protect the floor from moisture?
In the wet season, home improvement is likely to be affected mainly by two places, wooden floors and walls. With the improvement of moisture-proof technology, as long as moisture-proof work is done well in the early stage of decoration, most of them will not be affected by moisture in the later stage. So how to protect the floor from moisture?
1, don't lay the floor in rainy season. Choosing a good season to lay wooden floors can ensure that there is a good bonding force between the natural wooden floors laid on the ground, and it is not easy to be affected by the environment and arch deformation.
Generally speaking, it is best to lay wooden floors in autumn with moderate dryness, because wooden floors are more susceptible to physical factors such as thermal expansion and cold contraction. If laid in summer, the wooden floor will expand to a certain extent because of the high room temperature. Once the temperature drops, obvious cracks may appear. On the contrary, if laid in cold winter, it may swell and bulge in summer.
2. The bottom of the floor is covered with activated carbon. When laying the floor, you should first spread insect-proof powder on the dry ground, and then spread a thick layer of moisture-proof film, because the thickness of moisture-proof film is generally about 5- 10 mm, which can effectively prevent the infiltration of underground moisture, and at the same time, take into account the position of the footing, and will never affect the finish because of local factors. If you want to be more moisture-proof, you can spread a layer of activated carbon, which not only effectively prevents the floor from deforming, but also absorbs indoor smoke and carbon dioxide to improve indoor air quality.
3. Do a good job in floor maintenance. The simplest way to prevent moisture on the surface of wooden floor is waxing. Waxing can not only make up for the scars left by the wooden floor in daily life, but also improve the brightness of the floor. At the same time, the wax itself has the function of waterproof and moistureproof. The number of waxing depends on the new and old floors. The new wooden floor can be waxed once every half a month or once a month. After continuous waxing for 3-4 times, it can be waxed once every six months like the old floor, which can effectively prevent moisture. In addition, if you have a solid wood floor at home, you can also consider coating a layer of transparent varnish on the surface, but the process of coating varnish is extremely demanding. If the construction team is not careful enough, it may be counterproductive.
4. Remedial measures after the floor is wet. If the moisture-proof measures are not done well, there are also remedial measures. You can use a dehumidifier or turn on the dehumidification function of the air conditioner, and the moisture-proof effect is also good. If it is a small apartment, you can try the activated carbon bag, which can absorb water and remove odor.
The wooden floor is moldy, so it can be diluted with soft bleach in the ratio of 1: 3, and then cleaned with a rag, and the wooden floor will be restored to its original state.