What are the requirements for humidity and temperature when painting? What weather is suitable for painting?

It can't be lower than 5 degrees Celsius, and the weather above 5 degrees Celsius is the most suitable.

When decorating in winter, putty should not be scraped too thick, because the indoor air is dry and loses water quickly, otherwise it will easily lead to hollowing, cracking and uneven walls. When painting, the oiler should apply the paint strictly according to the temperature specified in the product description. The ambient temperature of paint construction should not be lower than 5℃, and the ambient temperature of varnish construction should not be lower than 8℃. Oil workers should pay attention to "keeping warm" and open doors and windows for ventilation after being fully dried.

Extended data:

Winter decoration should pay attention to the following details:

Detail 1: wood deformation

The main materials for decoration, especially wood, need to be placed indoors for three to five days to give play to the moisture generated by temperature changes. This is done to make the moisture content of wood close to the indoor level, which can avoid the deformation of wood after decoration.

After the decorative board is transported to the construction site, the floating dust should be wiped off with a dry towel, and varnish should be painted continuously on the back cover. All decorative panels should be tiled, and a large core board should be pressed on it, so as to prevent the panels from cracking and warping.

Detail 2: Wall cracking

If the putty is brushed before it is dry, the wall will easily "sweat" and even crack in a large area. Therefore, it is necessary to open the window frequently for ventilation, and the best time is between 10 and 4 pm. The temperature is relatively high during this period, which can prevent the new batch of putty from freezing. After the first putty is completely dry, batch the second putty. After the putty is completely dried for the second time, carefully polish it with sandpaper.

Detail 3: The plastering line is cracked.

When gypsum board ceiling is operated, it is best to use light steel keel instead of wooden keel, and the keel must be firm without looseness to prevent cracks in gypsum board ceiling. There is a gap of about 0.5 cm between plasterboards and between plasterboards and walls. Filling the joint with gypsum powder and latex, then pasting kraft paper on both sides and scraping putty in batches can prevent the gypsum line from cracking.

Detail 4: The paint is not effective.

In case of strong wind and cooling weather, it is not suitable for the oil industry, because there is a big sandstorm in winter, and the paint is easy to attach dust when it is not dry. Pay attention to choose windless weather for painting, and keep the indoor air dry, so that the paint will dry quickly, thus effectively reducing the adsorption of dust particles in the air.

Detail 5: Improper seam leaving

When decorating in winter, the joints of doors and windows should not be too small to avoid thermal expansion and suffocation in summer. When the solid wood floor is paved, the expansion joint should be set aside about 2 mm, and when making furniture, the joint should be set aside about 0.1mm. The joint between the floor and the wall is formed by floor battens, which can better deal with the disadvantages of excessive gap between the wall and the floor.

Detail 6: Tiles fall off

In winter, floor tiles and tiles should be soaked in water before paving, and the water must be saturated. Only in this way, the phenomenon of empty drum and falling off will not occur because of the weak bond with cement caused by slurry suction. In addition, both wall tiles and floor tiles need to be moved from outdoor to indoor for 24 hours, and can only be laid after adapting to indoor temperature to avoid hollowing and falling off after construction; After the brick is built, tick off the seam in time.

Detail 7: Cracking of wooden keel

In winter, it is easy to crack the wooden keel ceiling because of the strong wind, dryness and cold. When decorating, pay attention to the moisture content of wooden keel must be controlled below 12%. For cracks caused by different cold shrinkage coefficients of different materials, construction personnel should take the method of reserving joints to prevent them. The joint of all wood products should be controlled at 1mm, and the joint of gypsum board and cement board should be controlled at 8 mm. Therefore, the ceiling with keel structure should be avoided as much as possible in the construction, and it is best to choose the light steel keel ceiling.

People's Network-Four Major Problems in Winter Decoration

Baidu Encyclopedia-Decoration-Winter

People's Network-Winter decoration, pay attention to these seven details.