The rainwater leakage phenomenon of aluminum alloy doors and windows in construction engineering is the most common in the process of use, and it is also difficult to cure. It has a great impact on the quality of construction projects, and the economic losses caused are even more unpredictable. It is known that with the large-scale development of China's residential buildings, residential buildings are becoming more and more high-rise, facing the need of architectural lighting and aesthetic appearance, the single area of ​​doors and windows is becoming larger and larger, resulting in more and more rainwater leakage problems. Raised. At the same time, the leakage of rainwater from aluminum doors and windows is also widespread in other materials of doors and windows and has similar situations, and some are more severe. Therefore, it is necessary to analyze and deal with the causes of rainwater leakage of aluminum doors and windows. This not only solves the problem of rain leakage of aluminum doors and windows, but also has the same guiding significance for rainwater seepage of other types of doors and windows.
The main causes of rain leakage in aluminum doors and windows can be broadly divided into four categories.
One: caused by defects in the structure of the door and window itself during the design process,
Second: during the processing and installation process, the quality requirements are not met.
Three: caused by differences in materials and accessories
Four: caused by improper sealing of the joint between the wall of the hole.
Leakage caused by one or four of these four categories is more harmful and difficult to handle. . In addition, there are also defects in the building structure itself, which causes rainwater leakage at the joints between the door and window and the wall of the hole, but this is not a problem of leakage of doors and windows.
A. The waterproof structure of the aluminum door and window is unfairly designed, the waterproof sealing layer is not enough, and the drainage channel in the aluminum door and window structure cavity is not formed. When rainwater enters the aluminum door and window cavity easily and enters the room under the influence of indoor and outdoor wind pressure difference, the rainwater entering the aluminum door and window cavity cannot be discharged smoothly through the aluminum door and window drainage system and left in the door and window. Water also causes leakage.
B. The structural strength and steelness of aluminum doors and windows fail to meet the requirements of the wind-resistant function of the position where the aluminum doors and windows are used, resulting in the stress bars, hardware fittings, seals and bonding materials of the aluminum doors and windows under normal wind loads. Severe plastic deformation, cracking or damage, etc., resulting in failure of the door and window body seal and rainwater leakage. The reason is that the product failed to accurately calculate the strength and design according to the specifications, and did not pass the physical function test of wind pressure resistance before production and installation.
C. In the process of architectural design, the improper selection of aluminum alloy doors and windows is also one of the reasons for the leakage of rainwater from doors and windows. The most common ones are the use of ordinary sliding door aluminum doors and windows for the façade of high-rise buildings or areas with heavy rainfall, and they are not directly used in the structure of aluminum doors and windows or the necessary waterproofing measures on the structure of the building.
D. When the aluminum door and window are installed in the field, the assembly size is not well controlled, so that the positions of the overlapping seals are mutually misaligned or the overlap size is insufficient, or there is a gap due to the pressure, and the fastening screws for fixing the door and window frame are not closed. The rubber is sealed, and the surface of the sealing part is not cleaned when sealed with a sealant.
E. The sealing materials used in aluminum doors and windows are too bad, such as the rubber strip is too hard, the anti-aging time is short, the sealant is outdated or the fake plastic is fake, the resistance to deformation is poor, and it is easy to crack.
F, aluminum door and window processing precision can not meet the quality requirements, with the gap is too large, the parts that need to be assembled after bonding are not directly coated with sealing materials, so that rainwater easily penetrates the doors and windows and the main structure through various assembly gaps.
G, the connection between the aluminum door and window and the wall of the hole is the most common part of rainwater leakage. The main reasons are as follows:
1. Because the building wall adjacent to the door and window opening has its own defects, the rainwater penetrates directly into the room through the wall under the wind load, especially when the outer wall is pasted with tiles, because the gap between the tiles is often fine. Cracks exist. This phenomenon is often mistaken for leaking doors and windows because the water seepage is close to the door and window.
2. The filling material is not covered with the gap between the door and window frame and the wall, forming a phenomenon of empty valley or crack.
3. The adjustment pad of the fixed door and window frame remains in the door and window frame, or the secondary filling is not performed after the removal.
4. The gap between the aluminum door and window and the wall of the hole wall fails to fill the qualified materials as required. For example, the labels of the waterproof cement mortar are different or the ratio is different.
5. The wall hole is not in conformity with the design requirements, resulting in the gap between the shape of the door and window and the wall exceeding the specified range. The gap is too small to make the material unable to be filled. The excessive gap makes the door and window difficult to fix and the filling is not easy. Cracks and the like.
6. The fixed connection between the door and window and the opening is not strong, so that the door and window move under the action of wind load and the sealing material is cracked.
7. After the door and window are installed, there is no sealing at the joint between the outside of the door and the window and the wall, or the seal is invalid.
8. For doors and windows with corners or connected forms, the upper part of the connecting rods located at the corners or connecting parts is not blocked, which may cause leakage of rainwater to enter the room from top to bottom.
The main causes of rain leakage in aluminum doors and windows can be broadly divided into four categories.
One: caused by defects in the structure of the door and window itself during the design process,
Second: during the processing and installation process, the quality requirements are not met.
Three: caused by differences in materials and accessories
Four: caused by improper sealing of the joint between the wall of the hole.
Leakage caused by one or four of these four categories is more harmful and difficult to handle. . In addition, there are also defects in the building structure itself, which causes rainwater leakage at the joints between the door and window and the wall of the hole, but this is not a problem of leakage of doors and windows.
A. The waterproof structure of the aluminum door and window is unfairly designed, the waterproof sealing layer is not enough, and the drainage channel in the aluminum door and window structure cavity is not formed. When rainwater enters the aluminum door and window cavity easily and enters the room under the influence of indoor and outdoor wind pressure difference, the rainwater entering the aluminum door and window cavity cannot be discharged smoothly through the aluminum door and window drainage system and left in the door and window. Water also causes leakage.
B. The structural strength and steelness of aluminum doors and windows fail to meet the requirements of the wind-resistant function of the position where the aluminum doors and windows are used, resulting in the stress bars, hardware fittings, seals and bonding materials of the aluminum doors and windows under normal wind loads. Severe plastic deformation, cracking or damage, etc., resulting in failure of the door and window body seal and rainwater leakage. The reason is that the product failed to accurately calculate the strength and design according to the specifications, and did not pass the physical function test of wind pressure resistance before production and installation.
C. In the process of architectural design, the improper selection of aluminum alloy doors and windows is also one of the reasons for the leakage of rainwater from doors and windows. The most common ones are the use of ordinary sliding door aluminum doors and windows for the façade of high-rise buildings or areas with heavy rainfall, and they are not directly used in the structure of aluminum doors and windows or the necessary waterproofing measures on the structure of the building.
D. When the aluminum door and window are installed in the field, the assembly size is not well controlled, so that the positions of the overlapping seals are mutually misaligned or the overlap size is insufficient, or there is a gap due to the pressure, and the fastening screws for fixing the door and window frame are not closed. The rubber is sealed, and the surface of the sealing part is not cleaned when sealed with a sealant.
E. The sealing materials used in aluminum doors and windows are too bad, such as the rubber strip is too hard, the anti-aging time is short, the sealant is outdated or the fake plastic is fake, the resistance to deformation is poor, and it is easy to crack.
F, aluminum door and window processing precision can not meet the quality requirements, with the gap is too large, the parts that need to be assembled after bonding are not directly coated with sealing materials, so that rainwater easily penetrates the doors and windows and the main structure through various assembly gaps.
G, the connection between the aluminum door and window and the wall of the hole is the most common part of rainwater leakage. The main reasons are as follows:
1. Because the building wall adjacent to the door and window opening has its own defects, the rainwater penetrates directly into the room through the wall under the wind load, especially when the outer wall is pasted with tiles, because the gap between the tiles is often fine. Cracks exist. This phenomenon is often mistaken for leaking doors and windows because the water seepage is close to the door and window.
2. The filling material is not covered with the gap between the door and window frame and the wall, forming a phenomenon of empty valley or crack.
3. The adjustment pad of the fixed door and window frame remains in the door and window frame, or the secondary filling is not performed after the removal.
4. The gap between the aluminum door and window and the wall of the hole wall fails to fill the qualified materials as required. For example, the labels of the waterproof cement mortar are different or the ratio is different.
5. The wall hole is not in conformity with the design requirements, resulting in the gap between the shape of the door and window and the wall exceeding the specified range. The gap is too small to make the material unable to be filled. The excessive gap makes the door and window difficult to fix and the filling is not easy. Cracks and the like.
6. The fixed connection between the door and window and the opening is not strong, so that the door and window move under the action of wind load and the sealing material is cracked.
7. After the door and window are installed, there is no sealing at the joint between the outside of the door and the window and the wall, or the seal is invalid.
8. For doors and windows with corners or connected forms, the upper part of the connecting rods located at the corners or connecting parts is not blocked, which may cause leakage of rainwater to enter the room from top to bottom.
Concerned about surprises
Label: Causes of leakage of rainwater in aluminum doors and windows and prevention
Previous: Analysis of the role of hardware anti-theft bolts Next: Causes and troubleshooting of hydraulic pump noise
cloth art Sofa has been loved by fashion people. A variety of cloth patterns make the cloth art sofa has a pastoral, simple, modern and other various styles of performance. The fabric art sofa of different fabrics brings us a different feeling and experience. Sofa interior structure solid wood structure -- plate wood structure -- full steel welding structure sofa filling of soft polyurethane foam (commonly known as sponge), down, artificial cotton sofa fabric hybrid fabric, chemical fiber fabric, pure cotton fabric accessories zipper, feet, hardware accessories. Sofa air permeability, sweat permeability is good, cotton and linen can absorb the sweat and micro sweat on the body skin, so that the body temperature quickly return to normal, really achieve breathable, sweat absorption effect, warm winter cool summer. Close use of comfortable, anti-itching, friendly skin. PH is acidic, has no irritation to the skin and meets environmental protection and human health requirements. Anti-static, no ball, no roll edge, cotton and linen is sewn with pure cotton, without free charge, cotton fiber is not easy to deform. Natural environmental protection, is the real green ecological textile.
Futon Bed,Pull Out Couch,Futon Couch,Chair Bed
FOSHAN CITY LESHUN RONGHUI FURNITURE CO.LTD , https://www.ronghuifurniture.com