What should I do if the high-rise external wall leaks water?

Question 1: How to deal with the seepage of high-rise external walls 1. Control measures:

(a) the prevention and control of cracks between brick masonry and reinforced concrete frame beams and columns.

1. The beam bottom of the infilled wall adopts inclined precast concrete blocks. The specification of precast block is 60×200× wall width, and the inclination angle is 60 degrees. After the wall is well constructed and the settlement is basically stable (one week later), it will be laid obliquely.

2. The infilled wall and concrete wall shall be provided with Rachel reinforcement in strict accordance with the specifications. When painting, the joints between walls shall be connected with 30 cm wide steel wire mesh, and each side shall be 15 cm, so as to ensure no cracks after painting.

(2) Prevention and treatment of water seepage between brick joints of infilled wall masonry

When laying perforated brick or three-hole brick, the "three-in-one" masonry method is adopted to ensure the compactness of vertical head joint mortar and horizontal mortar joint mortar. And fully wet the brick in advance in strict accordance with the construction regulations. In the construction, through our careful organization and construction, the fullness of mortar is ensured. In the inspection and evaluation of high-quality structures in Minhang District, Shanghai, the plumpness of vertical and horizontal mortar joints of wall mortar in Buildings 27 and 28 of Aerospace Garden reached over 95%.

(3) Prevention and treatment of water seepage in reserved hole of external wall through-wall casing

1. We have adopted four waterproof methods for screw holes: during structural construction, ensure that the screw holes are high inside and low outside; Cover more than 5 cm with foaming agent before painting; When using foaming agent, leave a hole about 5 cm on the outside and plug it with expanded cement; Finally, paint and lay tiles on a large area of external walls.

2. For reserved holes such as cantilever scaffolding, fine stone concrete and expansive cement are used to block them twice.

Second, the cause analysis of water seepage:

1. Causes of seepage caused by cracks between brick masonry and reinforced concrete frame beam:

(1) Material aspect. The linear expansion coefficient of brick masonry filled with wall is different from that of reinforced concrete, which is twice that of brick masonry. At the same temperature, the deformation of the two materials is different, resulting in cracks at the joint of the two materials, and rainwater permeates the room along the cracks under the action of wind pressure.

(2) architecture. Rachel reinforcement between shear wall or column and infilled wall is omitted. In addition, when the infilled wall is built, the masonry is not easy to be embedded with the frame beam and column, especially the embedded part between the infilled wall and the beam bottom, which is not easy to be embedded tightly because there is no connecting steel bar, and it is a frequent part of cracks and water seepage.

2. Infilled wall masonry seepage along the brick joints.

Porous brick masonry is widely used in Shanghai's external walls. When laying, vertical joint mortar is often not dense; When scraping slurry from horizontal mortar joint, it is easy to flow into brick hole; Bricks are not fully wetted in advance in the masonry wall according to the construction regulations, and the dried bricks quickly absorb the moisture in the mortar, which leads to the drying and cracking of the mortar. The most important thing is that the vertical joints are not dense.

3. Water seepage in the reserved hole of the outer wall through-wall bushing

During the construction of external wall, the reserved holes such as template through-wall screw holes and cantilever scaffold reserved channel steel holes are not dense when sealing the wall, resulting in cracks.

Question 2: How to deal with the seepage problem of high-rise external walls? There is no guarantee for developers to do so, but the cost of digging and maintaining outside is too high and basically unrealistic. Even if the developer is sued, it can't be handled. Ask them to issue a written guarantee, how many times can they be repaired, and how do you say the losses caused by each maintenance? This is more realistic! To put it bluntly, developers probably don't have this technology to fix it. More information, better suggestions, free technical consultation to repair concrete waterproof leakage, eliminating the trouble of repairing today, leaking tomorrow, repairing every year and leaking every year.

Question 3: What should I do about the seepage of high-rise external walls? 20 points high-rise external wall leakage is common. Here, technically speaking, the leakage of high-rise external walls is not good for most people, because it is difficult to find the real leakage point. All the exterior walls can't be redone well! Can be repaired from the inside, the second type of people can not do well, free of charge to provide professional technical advice to repair concrete waterproof leakage! In addition, the exterior wall has a five-year waterproof warranty. During the warranty period, the developer is responsible for the maintenance and will take care of itself after the expiration. Repair the same place twice. If it can't be repaired well, you can find someone to repair it yourself. They will pay for it!

Question 4: The estimation of high-rise external wall seepage is that there is a gap between floor concrete and external wall masonry during the construction of the main project, and water has penetrated into it. It is more troublesome to completely repair it. At least wait until the rainy season is over and the water in the middle is completely dry before it can be completely repaired outside. Repairing your workers is only a temporary solution, or it will leak!

Question 5: The external wall of high-rise building leaks. Do you want to repair the internal wall? Treat it first. Solve the external wall problem first, and the internal wall will be solved naturally. It may be that the seal between the window and the external wall is not tight, or there is a water passage on the external wall (for example, the scaffolding eye is not blocked properly). In particular, brick exterior walls are more prone to leakage, depending on the site situation. It is suggested that you choose the products of Oriental Yuhong, polystyrene and special supporting materials for spraying rigid foam polyurethane external insulation system. Yuhong brand PMC44 1 dry powder adhesive is made by dry mixing polymer rubber powder, portland cement, fine sand and various additives. It has the characteristics of environmental protection, crack resistance and strong adhesion to wall and polystyrene board. RPUF-37 1 spray rigid polyurethane waterproof and thermal insulation integrated system "Yuhong" spray rigid polyurethane waterproof and thermal insulation integrated system consists of rigid polyurethane foam waterproof and thermal insulation integrated material and protective surface layer. The continuous and seamless shell is formed on the roof by on-site spraying process, which effectively eliminates the cold-hot bridge effect and realizes the integrated function of heat preservation and waterproof. RPUF―372 Spraying Rigid Foam Polyurethane Exterior Insulation System Yuhong Spraying Rigid Foam Polyurethane Exterior Insulation System (thin plastering-coating finish) consists of spraying rigid foam polyurethane insulation layer and wall self-adhesion, on which a polymer leveling mortar layer is made, and the thin plastering layer is fully reinforced with alkali-resistant grid cloth, polymer plastering layer, flexible putty for exterior wall and elastic coating for exterior wall. The rigid foam polyurethane insulation layer sprayed by the system forms a continuous and seamless whole on the wall, which can avoid thermal bridge in winter and greatly reduce indoor heat loss; In summer, it can greatly reduce the indoor heat energy transmitted by the solar radiation exterior wall, thus reducing the energy consumption of heating and air conditioning, with obvious energy-saving effect, reducing energy consumption, protecting the theme structure and prolonging the service life of the building. RPUF―373 Spraying Rigid Polyurethane External Thermal Insulation System Yuhong Spraying Rigid Polyurethane External Thermal Insulation System (dry hanging stone curtain wall) is to spray rigid polyurethane thermal insulation layer between keel and dry hanging stone wall, and hang stone curtain wall or metal curtain wall on keel. The rigid foam polyurethane insulation layer sprayed by the system forms a continuous and seamless whole, which can avoid thermal bridge in winter and greatly reduce indoor heat loss; In summer, it can greatly reduce the heat energy transmitted from the exterior wall to the room by sunlight radiation, thus reducing the energy consumption of heating and air conditioning, with obvious energy-saving effect, reducing energy consumption, protecting the theme structure and prolonging the service life of the building. HCA- 10 1 High-elastic-thickness acrylic waterproof coating "Yuhong" brand HCA-10/high-elastic-thickness acrylic waterproof coating is a thick one-component water-based waterproof coating based on high-quality acrylic polymer emulsion, with various functional additives and fillers. JSA- 10 1 polymer cement waterproof coating "Yuhong" brand JSA-1kloc-0/polymer cement waterproof coating is a two-component water-based waterproof coating. The liquid material is composed of high-quality polymer emulsion and various functional additives, and the powder material is composed of special cement and various additives, which are mixed in a certain proportion when used. PBC-328 Non-curing rubber asphalt waterproof coating "Yuhong" brand PBC-328 non-curing rubber asphalt waterproof coating is a waterproof material which is made of high-quality petroleum asphalt, functional polymer modifier and special additives through scientific optimization and mixing, and keeps viscous paste in use. The product has outstanding creep performance, so it has outstanding application characteristics such as healing, leakage prevention, waterproof ditch, fatigue resistance, aging resistance and stress-free. SPUA-35 1 Spray polyurea elastic waterproof coating Yuhong brand SPUA-35 1 Spray polyurea elastic waterproof coating is a two-component elastic coating which is sprayed on site by component A and component B. Component A is a semi-prepolymer prepared by reacting isocyanate with oligomer diol or triol; The component B consists of amino-terminated resin or hydroxyl-terminated resin, liquid amine chain extender, pigment, filler and additives. The component A and the component B are delivered to the spray gun through the metering pump of special spraying equipment, quickly mixed and sprayed on the surface of the base, and quickly reacted and solidified into a waterproof, anticorrosive and wear-resistant coating with elasticity and toughness. PCC-50 1 Cement-based permeable crystalline waterproof coating "Yuhong" brand PCC-50 1 Cement-based permeable crystalline waterproof coating is a powdery rigid waterproof material made of portland cement and quartz sand. And mixed with various active chemicals. Active chemicals penetrate into concrete, producing water-insoluble crystals, blocking capillary holes and making concrete dense, thus achieving the purpose of enhancing impermeability and waterproof protection. SPUA-355 scratch-coated polyurea elastic coating Yuhong brand SPUA-355 > >:

Question 6: How to deal with water seepage on the external wall of high-rise residential buildings? Find the management office to solve the problem.

Question 7: Can the seepage of high-rise external wall be repaired? The treatment of external wall seepage is actually very simple, but it is very troublesome to deal with. And there is no guarantee how long it will last after treatment. Due to the sun and rain on the exterior wall, the temperature difference is relatively large, which is prone to hollowing and cracks, and leakage will occur. Professional back surface materials UD00 1 high-strength special impervious slurry can also be used inside, and there is no need to set up shelves and hanging baskets. It can be handled in the leak.

Question 8: What are the causes of water seepage on the outer wall of high-rise buildings?

Causes of water seepage in external walls of buildings

Water seepage on external wall of high-rise building

Question 9: Who should be asked to solve the water seepage on the external wall of high-rise buildings in residential areas? Overhaul fund should be used to repair the property.

Question 10: What are the good solutions to water seepage in high-rise external walls? Invisible waterproof liquid (crack buster): the world's most advanced waterproof material, which can solve the surface and joint leakage problem of decorative layers such as tiles and stones without planing or disassembling, and only needs to be washed twice. There is no trace on the surface after brushing, which has no effect on the surface color of tripod. It is an excellent magical waterproof material for the maintenance of water seepage of ceramic tile and stone external wall and bathroom floor. You can search a shop on Taobao. There is a leaky and moldy king on Taobao. /kloc-has been dealing with water leakage and mildew professionally for 0/0 years.