We often go to see the things inside, all ignore the outside, such as exterior wall cleaning, speaking of exterior wall cleaning, it is really a very dangerous job, but people are getting higher and higher in the quality of cleaning, so the cleaning of the exterior wall can not be neglected, so we will ask a professional to clean, of course, often receive the exterior wall cleaning work, so the exterior wall cleaning, is very experienced. Now the cleaning company teaches you how to clean the exterior wall and the acceptance criteria
Yes
1. Pollution from modern industry. At present, in the metropolis, the excessive emission of automobile exhaust and industrial exhaust gases accelerates the carbon dioxide and sulfur dioxide in the air, commonly known as acid rain, which will cause strong local erosion on the exterior of the building, so the building in front of you is rusty.
2. Cleaning recommendations for high-rise office buildings, basically clean the exterior walls once a year. Many people suddenly see a staff member fishing in the office and sigh that their job is not easy. Working at height is under tremendous psychological pressure. Therefore, we should respect the fruits of others' labor.
3. Pollution, such as rust of metal materials and aging of plastic synthetic materials, cracking of cement materials; The paint on the exterior wall is discolored and peeling. are the direct cause of pollution caused by the exterior walls of buildings. The second is through erosion by wind and rain. It is even more severe for high-rise buildings, where the wind carries gray sand, dust, and debris in the rain and snow. In addition to damaging the materials, the erosion of wind, sand, rain and snow will inevitably leave traces on the surface of the building, and solid dirt adhering to the water lines is a source of pollution.
Fourth, the exterior walls, roofs, doors and windows of the building block the influence and erosion of the natural environment on the interior of the building; In addition, the exterior walls of buildings are subject to severe natural erosion, which can be described as weather-resistant, and for any material, long-term exposure to sunlight is an important external factor that causes pollution and erosion. This is especially true of ultraviolet rays and other harmful rays.
5. Cleaning for high-rise exterior wall cleaning, glass curtain cleaning, exterior wall painting, exterior wall advertising installation. Because they are all operated on high-rise exterior walls, there will be danger and complexity, so this work is scientific and professional to a considerable extent.
The above explanation is why the exterior wall is cleaned and the external wall cleaning personnel are not easy to analyze, after some cleaning, what should the acceptance criteria be? There is no washing. What are the criteria? Let's take a look at it now.
First of all, the surface of the exterior wall is clean, and the acceptance standard is that there are no stains such as dust, cement, paint, silicone, paint, etc.; The drainage holes on the metal structure plane of the exterior wall are unobstructedSecondly, the acceptance criteria for different materials are different. Curtain wall glass and mirror stainless steel require a clean and bright surface, without stains, handprints and water marks.
Finally, the inspection method is also very important, high-rise buildings take one level from every five floors of the entire building, take four checkpoints from each level, and inspect from the open windows and balconies. Multi-storey buildings are inspected from 2-3 checkpoints at each level