How to prevent moisture and mildew, and what should bricklayers and carpenters do?

Now the Jiangnan area has entered the rainy season, which is a sensitive period for the owners of decoration, and the problem of dampness and mildew bears the brunt. What troubles may the decoration owner encounter? How to solve these problems in rainy season decoration? Do a good job in water and electricity insulation. When decorating in rainy days, the circuit layout should be particularly careful and the circuit transformation should be standardized. Bare wires can't be directly buried in walls or floors, and should be protected by insulated wire tubes. Especially in the balcony and other places that are easy to get wet by rain, it is necessary to treat the exposed copper wire end when burying the wire to prevent the wire from being short-circuited after being wet. Pay more attention to the wires around wooden products such as wet wooden keel and large core board, otherwise, once the wiring is careless against moisture, it is likely to cause a fire. Masons pay attention to temperature and humidity. Although bricklayers can't live without water, the humidity should be moderate, especially when sticking bricks on the wall. In rainy weather, water should be sprinkled on the wall several hours in advance according to the actual indoor temperature and humidity. If the humidity is too high, the cement will flow back after the tiles are pasted, resulting in empty drum phenomenon, which will bring disadvantages to the decoration process. Woodworking controls the moisture content of materials. Some materials that are easy to absorb moisture, such as wood, board, gypsum board, etc., are easy to get wet in rainy season if they are not handled properly during transportation. After the water in the material volatilizes, it is easy to crack and deform, and it will also affect the quality of other materials. Therefore, transportation materials should be kept away from rainy days as far as possible, and should be completely enclosed during transportation to prevent the impact of rain on materials. In the process of placing, we should also pay attention to lying flat, not against the wall. At the same time, doors and windows should be opened to keep indoor ventilation, which is beneficial to keep the plate dry and the material stable. Generally, it is not recommended to lay the floor in the rainy season, mainly for fear that the underground water will not evaporate in time. If the keel has a high moisture content, it is easy to moisturize. Once in winter, after the moisture in the floor is absorbed by the dry air, it is easy to cause the floor deformation or increase the gap. If you must lay the floor in the rainy season, you must make corresponding preparations. The cement floor laid on the ground should be kept dry, and the dry-wet junction should be treated with effective partition. When laying the floor, use moisture-proof film to isolate moisture. After the floor is laid, conditional air holes should be left in hidden places. The laying technology should be determined according to the floor tree species, water content and air humidity. Tree species with poor stability need to be unpacked and balanced for 72 hours. Paint should avoid the rainy season as much as possible. Decoration in rainy season is very particular about putty work. Generally, putty powder is required to be embedded twice, but it must be polished and embedded again after the first thorough drying, otherwise it will cause cracks on the wall. To judge whether putty is dry or not, you can use sandpaper to polish it. If it is dusting without sandpaper, it means it is dry. When decorating in rainy days, the paint will not be moldy, but it will foam and turn white. However, adding no more than 15% waterproof white water to the paint can also solve this problem. For wood products, it is best not to brush varnish or nitrolacquer when mixing oil. Because the surface of wood products will condense a layer of water vapor in rainy days, if paint is painted at this time, water vapor will be wrapped in the paint film, making the surface of wood products turbid. For example, brushing nitrocellulose paint in rainy days will lead to uneven color; When you draw, it will turn white.