How to deal with and avoid the dampness and mildew falling off of the wall facing the bathroom

Clean the moldy wall first, so as not to infect other walls, and then use sandpaper to polish the moldy wall, if there is delamination, use a shovel to level it; If the wall is uneven, it needs to be repaired with putty; If the wall is flat, it is recommended to apply a sealing primer first, and then brush latex paint, you can buy some wall antifungal agent to add to the latex paint to assist and prevent mildew.

The main causes of mold on the wall:

1. Moldy due to seasonal reasons: it is best not to repair it immediately. Because the moisture in the wall is gradually evaporating, it is a normal physical change of the decorative material.

If you apply a new paint finish before the moisture has completely evaporated, the moisture will continue to evaporate and will come out of other places, and the wall may become moldy again.

2. Mold of the wall caused by the failure to do a good job of wall insulation: check whether the wall has been insulated first. Hit the wall with an inspection hammer, if the sound is hollow, it means that the wall has an insulation layer, if the sound is muffled, it means that the wall has not been insulated.

If there is an insulation layer, it is necessary to check whether there are cracks in the exterior wall of the building, if there are no cracks, it means that the insulation material is not good, and it should be replaced, which is the root cause.

3. If the wall has been damp: you can choose a colorful interior wall paint with good waterproofness, and the specific construction method is as follows: let the damp wall have a drying process of one to two months, and then brush a layer of waterproof slurry mixed with cement on the wall to play a moisture-proof role.

Use gypsum putty to fill the pits and hemp surface of the wall, then scrape the putty, and after drying, use sandpaper to smooth the wall, repeat twice, and clean it. Apply the primer twice with a paint roller on a dry and clean wall.

4. If the wallpaper is used for the wall: it should be stored carefully, because the wallpaper is the most prone to mold. The correct way to remove mold from wallpaper:

Wipe with a cloth soaked in disinfectant alcohol, if it is not too serious, wipe it two or three times to remove the mold. Use bleach, but it can easily irritate the skin, so be sure to wear rubber gloves and use it with water.

1. Attention should be paid to the exhaust problem when installing the heater, and the appropriate size should be selected according to the area of the bathroom.

The heater has a ventilation function, which can exhaust the filth and moisture in the bathroom, so when installing the heater, the exhaust pipe should be connected to the outside of the house to effectively discharge the gas. In addition, it is recommended to choose a suitable heater according to the area of the bathroom, between 3 square meters and 7 square meters of toilets, it is recommended to use 1350 watts of heaters, and more than 7 square meters of 2150 watts, so that a certain temperature can be effectively maintained and more comfortable to use.

2. The heater needs high power, and it is recommended to use a special power supply.

Because the heater needs high power to maintain the operation and temperature balance of the body, designer Zhou Jianzhi suggested that for the sake of safety, the heater should use a special power supply, avoid using a common circuit with other power supplies, and set up an independent switch, which can not only reduce the occurrence of power jumps, but also make it more safe to use.

3. Precautions for wire control and remote control heaters.

Generally speaking, the heater can be divided into two types: wire control and remote control, and the installation and use are also different, the wire control heater is suitable for installation in the bathroom when the overall decoration is installed, and the wall must be reserved for the position of the buried line during the decoration, and then use the panel to control after the installation is completed. If you want to install a heater after the renovation is completed, you can choose a remote control heater.

4. The heater is recommended to be installed above the toilet bowl and has the function of deodorization.

Regarding the installation location of the heater, the heater should be installed in the non-shower area, in addition to keeping the ground dry, changing clothes after bathing can also avoid cold, and it is most appropriate to install it above the toilet, because the heater has the function of deodorization, which can allow air circulation and keep the bathroom environment fresh and odorless.

The root causes of mildew are: 1. The waterproofing of the exterior wall is not done well, and the water seepage. 2. The room is humid, and the moisture penetrates into the putty layer. 3. Improper selection of putty materials, ordinary putty is not waterproof and easy to mold.

If it is water seepage on the exterior wall, the treatment method of mold: please re-waterproof the exterior wall, otherwise it will not solve the problem from the inside.

If it is damp indoors, the treatment method of mold: remove the original putty layer, level it with waterproof putty or inorganic substrate for the exterior wall, and then redo the topcoat. It is best to do another layer of stain-resistant treatment on top coat, which can effectively isolate the wall from the indoor environment and never get wet.

First remove the putty and re-use the water-resistant putty to make a leveling layer, then brush a layer of primer, two layers of paint, and finally use Xuanhe Jun glaze stain-resistant paint, brush or barrel on the old wall first, half an hour after the first coating is dry, and then brush again, the surface anti-fouling layer has been done.

Once the wall is painted, mold will no longer occur.