Treatment scheme for leakage of magnetic sheet external wall?

The main reason for leakage of magnetic decorative surface external wall is improper tile construction. The ceramic tile itself is a sintered ceramic material, so it is impervious to water, while the bonding material is cement slurry, which is easy to cause insufficient mortar on all sides of the ceramic tile and form a cavity. Because there are small transverse cracks and some honeycombs, pits and dog holes in the cement jointing between tiles, rainwater can easily penetrate into the leveling layer and tile lining from these cracks, holes and holes and be absorbed in them. Because the tiles are impermeable to water, water is trapped inside to form a small reservoir, which can only penetrate indoors. When the rain clears and the sun shines directly on the outer wall, the temperature outside is high and the temperature inside is low. At this time, the water vapor in the ceramic tile lining enters the inner wall through the capillary holes of the leveling layer, which leads to the damp inner wall, moldy interior decoration, and white minerals flowing out of the outer wall from the inside, which affects the beauty of the wall.

The governance method is divided into the following steps:

1, first of all, clean the external wall, so that the surface is free of oil pollution, dust, cement and other loose particles and all sundries in holes and gaps.

2. Mix waterproof powder and JS composite waterproof coating according to the ratio of 3.5: 1 to make repair paste, mortar joint all gaps between tiles, and fill holes tightly.

3. After drying, spray the exterior wall with silicone hydrophobic agent. Silicone waterproofing agent is an environmentally friendly product, which does not change the original background color, is not easy to stick to dust, and does not affect the decorative effect of ceramic tiles.

For the wall surface treated by the above method, a large number of pores and micro-cracks are sealed by the hydrophobic agent, and the hydrophobic coating formed by the hydrophobic agent on the surface of the external wall makes it difficult for rainwater to stay on the surface of the external wall like falling on lotus leaves, thus eliminating the source of water leakage and achieving the purpose of waterproofing.

Option 2

There are many middle and high-rise buildings, especially high-rise buildings, where the joints between tile exterior walls and windows are leaking and the jointing is not dense, which affects the engineering use. It is necessary to carry out waterproof maintenance and treatment of the external wall in order to better play the building's use function.

In order to better manage the external wall waterproof maintenance, a set of feasible maintenance scheme is formulated according to the actual situation. Choose caulking putty to completely repair loose cracks and holes, seal the joint between window frame and wall, and then spray transparent colorless silicone waterproofing agent on both sides. (Construction technology: debugging the special hanging board for high altitude-cleaning the construction base-sealing the joint between the window frame and the wall-plugging the surface, hole and big gap of the external wall-re-preparing the waterproof layer of the expansion joint reserved for the roof and the external wall-sealing the wall with grouting technology-coating transparent and efficient waterproof glue film on the joint of all tiles of the entire external wall-pulling the entire external wall up and down with the external wall water repellent.

Key points of construction operation:

1, the joint between window frame and wall is waterproof and sealed, and foam caulking agent and sealing material are used successively. Foam joint sealant is a one-component polyurethane foam joint sealant. The sealing material is one-component sealing and filling waterproof sealant.

2. Waterproof sealing of expansion joints is reserved for external walls, and waterproof sealant is filled with one-component sealing.

3. Before waterproof sealing of external wall holes and large cracks, clean the external wall, expansion joints, window frames and other parts to be treated with water spray guns, so that the external wall and joints, holes and holes under construction are free of oil, dust and cement loose particles. After it is dried, the holes, holes and seams will be embedded with waterproof sealing materials to make them dense and consistent with the original color, and then carefully constructed with quick plugging agent and transparent waterproof glue film.

4. Large-area ceramic tile external wall is hollowed and cracked, and inorganic water-stop grouting material is used for construction.

5. The external wall brick jointing agent is waterproof and sealed as a whole, and the jointing material with high quality, high efficiency and environmental protection is adopted.

6. The integral strip tile external wall is waterproof, meticulously constructed, efficient and environmentally friendly. The material has the characteristics of excellent waterproof performance, good air permeability, convenient construction, safe use, reliable quality and good durability.

7, the overall review, if found that water leakage, leakage treatment in time.

8. Water spraying test and acceptance.

For more information about project/service/procurement bidding, and to improve the winning rate, please click on the bottom of official website Customer Service for free consultation:/#/? source=bdzd