Solve the problem of moldy room walls and bedside tables! (See the following problem description for details! 100 points experts answer them one by one. Thank you! )
When mildew spots have appeared on the wall, you can brush off the mildew spots with a (dry) toothbrush first, and then gently wipe them with a soft cloth dipped in alcohol, so as to dry the wall and prevent the growth of mold.
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Adding water to bleaching powder (powder) and pouring it into the spray bottle according to the ratio of 1: 99 and spraying it on the moldy wall surface can immediately solve the problem of moldy wall surface. Wipe the wall with a rag; Then wash it with clear water, dry it, and brush the mildew-proof paint on the wall to protect it from moisture for a long time. In addition, there is a convenient household waterproof repair agent on the market, which only needs to be sprayed on the gap of the leaking wall like an insecticide, so it is very convenient to operate.
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When the mold is not too serious, it is enough to wash the walls with 80% alcohol. Pay attention to ventilation and wear protective gloves, masks and glasses when cleaning. In order to avoid mildew again, we should pay attention to thoroughly drying the walls, eliminating the causes of mildew, and properly heating and ventilating.
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In rainy days, try to open the window as little as possible. In addition, try to make the wall dry. In wet weather, you can use dehumidifier, air conditioner and fan to absorb the water on the wall. Once there is water vapor on the wall or furniture, wipe it with a dry rag immediately.
Remove stubborn wall mildew.
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First, clean it with sandpaper, and if there is delamination, smooth it with a shovel;
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Then, if the wall is uneven, it needs to be repaired with putty;
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Finally, if the wall is flat, it is recommended to brush the sealing primer first and then the latex paint.
Causes of moldy walls
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The first reason: water supply, drainage pipe or heating pipe leaks, resulting in wet walls. After a long time, the wall will become moldy.
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The second reason: external rain seeps into the room, resulting in wet walls. Cracks appear at the junction of the baffle under the balcony window (mostly made of prefabricated floor slab, which is easy to crack at the junction with the wall) and the wall, or the window has poor sealing performance, which may lead to the infiltration of external rainwater into the room.
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The third situation: the wall insulation is not done well, resulting in a large temperature difference between indoor and outdoor, which makes the moisture in the indoor air condense on the wall when it is cold, resulting in the wall being wet.
Reminder to prevent moldy walls
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In order to prevent the wall from becoming moldy, we can first coat the wall with anti-seepage liquid when decorating, so that a colorless and transparent waterproof glue film can be formed on the wall to prevent the infiltration of external moisture.
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If the wall is often moldy, it may be that the waterproof layer is not done well. In this case, please ask the professional decoration team to redo the waterproof layer.
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If you find black spots on the wallpaper, don't wipe them with water, because they are dirt.
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Wall mold can hide many hepatitis viruses and influenza viruses, so don't ignore the harm of wall mold to human body.
Matters needing attention
Wall mold, also known as wall mold, wall hair, wall cancer and so on. Most of them grow on wet walls, and they may also grow indoors and outdoors. It is a visible biological flora, and the most common ones are Auricularia vitis and Aspergillus Niger.
Spore powder of Pleurotus ostreatus flows with the air, which can cause respiratory diseases and allergic symptoms, such as bronchitis, tonsillitis, hay fever and asthma. People with low immunity may also cause headache, fever, skin or mucous membrane inflammation.