How much do you know about the waterproof and moistureproof measures of the exterior wall?

[China Glass Net] The exterior wall of the house is mainly for the wall of outdoor enclosures, including walls, windows, walls and windows. It is prone to water seepage and mildew. In addition, the hole in the wall is also the leakage of the wall. The main part of the water.

At present, the external wall structure has a block structure, a brick-concrete structure, and a cast-in-place reinforced concrete structure. The wall structure includes exterior wall external insulation and external wall insulation. When the exterior wall is waterproof, the waterproofing and moisture-proof treatment can be carried out from the inner structural surface of the wall. Since the vertical wall is a structure without water, the seepage is carried out from the back surface. Moisture proof is completely solveable, but it must be done on the structural surface. If it is internal insulation, the insulation layer must be removed and waterproofed.

The waterproof material selected should be a rigid waterproof coating product, because the rigid waterproof material can be tightly combined with the structural wall to withstand the penetration of the wall and the pressure of the external airflow.

The outer wall should be cleaned first. The surface should be compacted and leveled. There should be no looseness, sanding or peeling, so as not to affect the bonding strength. The base layer should be dry when applying waterproof coating.

After the completion of the base cleaning process, the next step is to clean up the dead corners, which are so-called yin and yang angles, construction joints, expansion joints and other important parts for treatment. In particular, the drain holes should be strengthened and need to be painted 2-3 times. Waterproof primer.

In order to improve the adhesion between the waterproof coil and the base layer, the primer can be repeatedly painted, uniformly coated, completely covered, and fully penetrated into the concrete base layer to improve the bond strength and shear strength.

When bonding the coil, wait until the second coating is completely solidified before construction.

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