What are the ways to clean the external wall?

Exterior wall cleaning, as the name implies, is to clean the wall outside the building. The main maintenance process is to use "calcification cleaner" and dilute it in proportion. With the improvement of modern civilization and the rapid development of economy, more and more high-rise buildings have sprung up, followed by the rise of building exterior wall cleaning industry, which has aroused widespread concern and attention in China. Today, we will introduce the operation method and scheme of external wall cleaning. Let's have a look!

A, the operation mode of external wall cleaning

1. Operation mode of single spreader with seat plate: workers use the hanging plate (rope) to slide down to the designated position for construction. This construction method has the characteristics of convenience, flexibility and high safety factor. At the same time, it occupies less resources and can minimize the impact on the daily work and life of the owners.

2. Hanging basket method: Set a hanging basket on the roof to transport workers to the designated location for construction. This construction method has low cleaning efficiency and high cost.

3. High-altitude spider car? Use platform equipment, such as spider trucks and forklifts, to transport workers to designated locations for construction operations. This construction method has great limitations and is generally suitable for difficult projects below 36 meters. Because of the high cost, it is rarely used.

4. Track window cleaner: Track window cleaner is special for some high-rise buildings. This construction method is the same as the hanging basket method, but it is easy to move.

5. Indoor double-sided wiping method: Some glass windows are cleaned by scraping with double-sided magnetic glass, which can be operated indoors, but it has low efficiency and poor reliability and is widely used in the south. Because of the magnetic force, it has little effect on the hollow double-layer glass.

Second, the cleaning method of exterior wall cleaning

Cleaning and curing technology of decorative surface of granite exterior wall

(1) adopt "calcification cleaning agent" and dilute it according to the ratio of 1: 10 or 1:5.

(2) After the decorative surface of granite exterior wall is cleaned, it shall be waxed and maintained.

(3) The bottom of the external wall of the building is the most polluted. Clean a small sample and determine the dilution ratio of the cleaning agent.

(4) The cleaning procedures for smooth granite decorative materials by high-altitude suspension construction personnel are as follows:

1) Soak the cleaning roller in the detergent solution in the bucket.

2) Use a cleaning roller dipped in detergent solution to forcibly flow back and forth on the surface of the smooth granite decorative material, so as to wet and separate the dirt on the granite surface.

3) Special dirt can be wiped with a rag.

4) Rinse with clean water in the cleaning water pipe, so that there is no dirt and detergent residue on the granite decorative surface.

(4) The procedures for high-altitude suspension construction personnel to clean up rough granite facing are as follows:

1) Rinse the rough granite surface with clean water in the cleaning pipe to wash off the dust on the surface.

2) Immerse the scrubber in the detergent solution in the bucket.

3) Use a brush dipped in detergent solution to scrub the dirt on the rough granite surface, that is, the dirt in granite pores.

4) Rinse with clean water in the cleaning water pipe, so that there is no residue of dirt and cleaning agent solution on the granite surface.

5) Carefully clean the entire exterior wall surface with clear water.

The decorative surface of granite exterior wall can also be protected after cleaning and drying for 3 hours.

Cleaning and maintenance technology of aluminum alloy exterior wall

(1) adopts "neutral universal cleaner" and dilutes it according to the ratio of 1: 50.

(2) Select the typical dirt surface on the external wall of the building, clean the sample, and determine the dilution ratio of the cleaning agent.

(3) The procedures for high-altitude suspension construction personnel to clean the surface of aluminum alloy decorative materials are as follows:

1) Dip the wiper or cleaning roller into the detergent solution in the bucket.

2) Wipe the decorative surface of aluminum alloy with water or cleaning roller dipped in washing liquid to wet and separate the dirt.

3) Scrape the sewage on the surface of aluminum alloy decorative materials with a wiper. Every time the wiper blows a knife, clean the sewage on the wiper surface with a rag, and then scrape the next knife.

(4) Special dirt can be directly wiped with a rag and then scraped with a wiper.

(5) The high-rise building is provided with a louver refuge floor and an equipment floor. Wipe the aluminum alloy shutters with a rag soaked in detergent solution, and then rinse them with clear water.

Cleaning and maintenance technology of stainless steel exterior wall

Because stainless steel exterior wall decoration materials are widely used on the exterior wall surface at the bottom of the building, and the upper surface of the exterior wall of the building appears in the form of metal structure, different cleaning and maintenance methods should be adopted for the surfaces of stainless steel decoration materials on the upper and lower surfaces of the exterior wall of the building.

(1) surface cleaning and maintenance technology of stainless steel decorative materials on the upper layer of building external walls.

1) is cleaned with neutral stainless steel and diluted at the ratio of 1:50.

2) Select the typical polluted surface of the upper floor of the building, and carry out small sample cleaning to determine the dilution ratio of the cleaning agent.

3) For the large-area stainless steel decorative surface on the upper floor of the building, the following cleaning procedures can be adopted:

A. Dip the wiper or cleaning roller into the detergent solution in the bucket.

B, wipe the stainless steel decorative surface with water dipped in detergent or a cleaning roller to wet and separate the dirt.

C, use a wiper to scrape the sewage from the stainless steel veneer. Wipe the sewage on the wiper plane with a rag every time you scrape, and then scrape the next knife.

D, special dirt, can be directly wiped with a rag, and then scraped with a wiper.

4) For the cleaning of small-area stainless steel structural members on the upper floors of buildings, the following procedures can be adopted:

A. Soak the rag in the cleaning solvent in the bucket.

B, dip the twisted slightly dry rag in detergent solution to wipe the surface of stainless steel structure, and wipe off the dirt.

C, rinse the surface of stainless steel structure with clean water in the cleaning water pipe.

(2) The cleaning and maintenance process of the surface of stainless steel decorative materials at the bottom of building external walls.

1) adopts neutral "stainless steel maintenance agent" (PH=7-7.5).

2) Spray it occasionally at a distance of about 20-30 cm from the surface of stainless steel decorative materials.

3) Wipe gently with a clean and soft rag to wipe off dirt, thus forming a protective film on the surface of the stainless steel decorative material.

4) In case of special dirt, the surface of stainless steel decorative materials can be cleaned with neutral "universal cleaner" diluent first, and then wiped with "stainless steel maintenance agent" after drying.

5) When cleaning the surface of stainless steel decorative materials on the upper part of the bottom layer, elevators or aluminum alloy herringbone ladders should be used. Construction personnel should wear safety belts for protection.

6) Stainless steel is afraid of acid, alkali and waxing water. After the operation is completed, it must be cleaned with water and coated with stainless steel oil to prevent rust.

Attention: Do not touch the stainless steel oil on the glass, especially the coated glass, to avoid "rainbow".

Cleaning and maintenance of exterior wall tiles and ceramic mosaic tiles

(1) Calcification cleaner (diluted at the ratio of 1: 10 or 1:5), neutral universal cleaner (diluted at the ratio of 1:50), wall and floor tile cleaner and cement slurry cleaner.

(2) Using the above four cleaning agents, select a typical polluted surface of building exterior wall to clean the sample, and determine the type and dilution ratio of cleaning agents.

(3) The procedures for surface cleaning of external wall tiles and ceramic mosaic decorative materials by overhead suspension construction personnel are as follows:

1) Soak the cleaning roller in the detergent solution in the bucket.

2) Use a cleaning roller dipped in detergent solution to roll back and forth to wipe the surfaces of exterior wall tiles and ceramic mosaic decorative materials, so as to wet and separate the dirt.

3) Rinse with clean water in the cleaning water pipe, so that there is no residue of dirt and detergent solution on the surfaces of exterior wall tiles and ceramic mosaic decorative materials.

Cleaning and maintenance technology of exterior wall glass surface

Exterior wall glass is one of the most widely used materials for building exterior walls. There are many kinds of glass that can be used for building exterior walls, most of which are combined with other materials to form exterior walls. Therefore, in addition to using different cleaning processes for the upper and lower layers, the selection of cleaning agents should also be studied.

(1) Select a typical polluted surface on the surface of the upper glass decorative material of the building external wall, clean the sample and determine the dilution ratio. Because the surface of glass decorative materials is the last process of cleaning external walls, the cleaning agent selected should not damage or pollute the surfaces of other decorative materials that have been cleaned. Not only the surface of glass, but also the surface of other decorative materials should be cleaned with a small sample. This cleaning agent can only be used if the reaction is not damaged and polluted.

3) The procedure of cleaning the surface of glass decoration materials by hanging under high altitude is as follows:

A. Immerse the wiper in the detergent solution in the bucket.

B, use a water applicator soaked in detergent solution to smear on the surface of glass decorative materials, and be careful not to splash sewage on the surfaces of other decorative materials.

C. Wiper scraping: In addition to scraping the glass decorative surface clean, it is also necessary to prevent the surface of other decorative materials from being polluted again, which is also the difficulty of surface maintenance of exterior wall glass decorative materials.

D, clean up the sewage flowing into the silicone sealants gap of the structure, otherwise the sewage will penetrate into the scratched glass surface again, causing pollution again.

Do not scrape and clean the glass with acidic reagent.

F, after scraping the glass, if it is cloudy, dry it with a cotton towel.

Note: glass is not easy to get dust after scraping with water, but easy to get dust after washing with detergent.

When receiving a large glass curtain wall cleaning project, it is best to take the spare cleaning agent, aluminum plate and glass (samples) to a professional chemical research institution. Through the experimental verification, we can see whether the cleaning agent in the report has any influence on the glass, which can avoid unnecessary legal responsibility, because the glass is particularly sensitive after heating. In normal weather, a little concentrated detergent will not damage the glass, but under the same proportion, the strength of the glass will be strengthened by 30% after the medicine is washed at a higher temperature, that is, the concentration will increase immediately. So when you do it, you should also master the weather and medicine at that time.

(2) The cleaning and curing technology of the surface of glass decorative materials for building exterior walls.

1) Use the diluted glass cleaner that has been sampled.

2) Use elevator or aluminum ladder for climbing and cleaning. Within 2 meters from the ground, you can use the connecting rod to connect the wiper and the wiper for operation.

3) The cleaning process is the same as that of the upper layer.

4) The exterior wall glass within 2m at the bottom shall be cleaned and maintained daily. The procedure is as follows:

Use "glass cleaning and maintenance agent" to spray on glass dirt.

Wipe directly with a soft and clean rag, dirt can be wiped off, and a protective film will be formed on the surface of glass decorative materials, which will cause pollution and traces anyway.

Cleaning and curing technology of exterior wall coating surface

(1) diluted with "calcifying detergent" at the ratio of 1:5. (For reference only)

(2) Make a cleaning sample and determine the dilution ratio of the cleaning agent.

(3) Brush the coating surface with a brush dipped in detergent solution to remove dirt.

(4) Wash with clear water.

(5) Generally, the coating surface is rough, and the dirt is deeply immersed, so it is difficult to remove the cleaning agent. From the price comparison, the price of detergent and new materials is almost the same, so some projects give up cleaning and adopt the method of spraying new paint for cleaning and maintenance.

(6) Choose a suitable cleaning agent, do not use hydrofluoric acid easily, and do not use hydrochloric acid.

Note: when cleaning the external wall model, you should choose several difficult ones to do. Don't look for a clean one for personal purposes, and avoid taking it as a standard, but it is difficult to reach the standard at high altitude.

Third, the external wall cleaning scheme

It is necessary to ensure that the cleaning of the external wall can achieve the effect of being as clean as new, and it cannot cause any destructive damage to the external wall of the building, which requires us to have a high professional technical level and rich experience in external wall cleaning.

External wall cleaning materials mainly include cement wall, glass curtain wall, composite aluminum plywood wall, marble wall, granite wall, mosaic wall, ceramic tile wall, dry masonry wall, water brush stone wall and so on. Due to the erosion of dust, oil pollution and acid rain (fog) in the air, a newly built building often becomes messy in a short time, especially in some cities with serious air pollution. Without regular professional cleaning and nursing, it will soon lose its original charm, which will not only shorten the natural life of the external wall, but also greatly affect the beauty and image of the city.

1, cleaning method:

(1) working on an overhead crane; (2) hanging board for aerial work; (3) Scaffolding for aerial work.

The choice of cleaning method mainly depends on the shape of the building, the structure of the ceiling and the surrounding environment of the building floor.

2. Precautions for cleaning external walls:

(1) When cleaning ceramic tiles, it should be noted that the use of cleaning agents will destroy the surface smoothness of ceramic tiles.

(2) When cleaning the glass, you need to pay attention to the glass coating device, which is easy to coat inside. If the coating is installed outdoors, we need to pay attention to avoid damaging the coating on the glass surface when cleaning the glass.

Pay attention to whether the tools and cleaning agents used damage the coating.

(3) Aluminum plate cleaning requires the use of neutral cleaning agents, and corrosive cleaning agents and grinding tools are absolutely not allowed.

When cleaning the external walls of buildings, we should not only ensure that the external walls are as clean as new, but also have no destructive damage to the external walls of buildings. This requires us to have a higher professional and technical level and rich experience in external wall cleaning to complete this work.

3. The work of cleaning the external wall is aerial work, which is very dangerous. In order to absolutely ensure the safety of operation, we must always keep a high degree of vigilance, and everything should be operated in accordance with the operating rules, without any negligence.

Aerial work is not allowed under the following circumstances:

(1) Not approved by the supervisor and trained in safety technology operation;

(2) Being diagnosed by a doctor as suffering from heart disease, hypertension and illness that day, and not suitable for aerial work;

(3) it is forbidden to work after drinking;

(4) Bad weather and its influence on operation, etc.

Check preparation before operation:

(1) Check whether the crane boat or cable is damaged or broken;

(2) Check whether the parts of the suspended crane are normal and whether the working environment is normal.

Operating procedures:

(1) When working on board, you should concentrate, and you are not allowed to have fun.

(2) The crane boat cannot be overloaded during operation, and someone should cooperate with all the work on the roof;

(3) The operator must fasten his seat belt, which should be tied to the safety rope on the ship.

The external walls of all high-rise buildings are corroded by sunlight, wind, rain, harmful gases and oil fumes all the year round, which causes dirt and weathering on the external walls of buildings, which not only affects the beauty and appearance of buildings, but also causes damage to buildings. Therefore, cleaning the external walls of buildings not only beautifies the environment, but also plays a role in protecting buildings. I have already introduced the operation method and scheme of external wall cleaning to you, hoping to help you know more about this building maintenance method. If you want to know more, you can go to this website to see Nanchang Guanghui Exterior Wall Cleaning Co., Ltd.