Curtain wall quality

In the process of curtain wall construction, as the curtain wall designer and curtain wall consultant engineer of this project, designer will carry out quality inspection of every process link in the production and manufacturing process of curtain wall. According to the technical requirements and specifications of construction drawings and production drawings of the project, a comprehensive quality inspection should be carried out in the production plant of curtain wall contractor. The process affecting waterproofing is the focus of the inspection. In the inspection, engineer also found a number of quality problems, including: glue unqualified, aluminum milling error, rubber strip sealing, profile assembly splicing and other problems. Through the inspection results, the curtain wall contractor is required to improve the production technology and construction technology, and formulate effective quality management methods.

In the process of site installation, in order to verify the water-tightness of the site curtain wall after installation, it is necessary to carry out the field curtain wall splashing test. The completed curtain wall units at the site were selected and tested separately according to the defined test phase and plate. According to AAMA501.3-2, select the nozzle that meets the requirements, determine the test water pressure, and spray on the vertical joints, transverse joints and open joints of the curtain wall at about 305mm away from the glass surface, and move slowly back and forth to observe the sealing condition of the curtain wall. If the leakage occurs in the test, it is necessary to timely check and analyze the cause, improve the problem, reduce the chance of point support curtain wall leakage in the future. After the modification of the field curtain wall problems, the field water splashing test was carried out again to ensure the watertight performance of the final curtain wall.

The design of almost all drawings is only to express the ideal state, and the detection of performance test is only responsible for the incoming samples. In the implementation process of specific curtain wall projects, engineers must carry out quality inspection for each process. In fact, the technical ability of domestic curtain wall contractors is uneven, and there is also a lack of professional curtain wall technical workers. In many cases, it is very long to turn the curtain wall system expressed in drawings into the ideal curtain wall products. Only on the curtain wall system design, curtain wall, curtain wall manufacturing process quality, on-site quality inspection such as comprehensive and effective control of each work stage, problems encountered in the production of construction to implement in time, to study the cause of the problem and effectively solve the problems, finally to achieve more perfect curtain wall products and reliable of curtain wall water tightness.