What is the technological process of plastering external walls?

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1, grassroots cleaning

Do a good job of foundation work first, and thoroughly clean the wall surface, so that the base surface is free of oil stains, mortar, sundries and other stains. If there are defects in the wall, such as potholes, the defects should be dealt with in advance before plastering, and the gray wall will be smoother and more delicate after plastering.

2, the wall is wet

After the foundation treatment, it is necessary to wet the wall, and the wetting degree should be 5- 10 mm, so that the wall is in a wet state. Doing so can avoid the empty drum in the later shrinkage of the wall.

Step 3 hang the net and throw the hair

It is recommended to use steel wire mesh, the grid spacing is recommended to be 1-2cm, and the diameter is not greater than1.5 mm. Hanging the mesh can prevent the wall from cracking and hollowing in the later period.

4. Find the rules and paste ash cakes.

The plastering thickness of the external wall is determined according to the flatness and verticality of the wall, and the normal plastering thickness is not less than 7 mm.. Then paste the ash cake with the method of line dropping, square ruler and pulling the line, and the horizontal distance is about 1.5-2 meters.

5, do corner protector, screed

Pay attention to the corner protection of doors and windows, cylinders and other parts, so that the plastering of external angles such as walls and cylinders can ensure straightness and founder. Corner protectors are mainly used for screed, so the mortar used can be the same as the screed mortar. It is suggested that the height should not exceed 2m, and the width of both sides should not be less than 5cm.

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