How many times do you paint the high-rise exterior wall?

Generally, the wall latex paint needs to be brushed 2~3 times. The brushing sequence is to brush the roof first and then the wall, and the wall is up and down. After the wall is cleaned, wipe off the dust on the wall with a cloth and brush latex paint in parallel. When using a new combination brush pen, the floating hair and floating cloth on the combination brush pen should be removed, and the solid hair should be stirred evenly before using latex paint. Add proper water to prevent the world from changing its head, and the paint won't open.