As an important part of real estate buildings, real estate metal curtain wall panels are an organic combination of real estate technology and art. In our country, the metal curtain wall plate, the peripheral protective structure, has been developed for more than 20 years, and the metal curtain wall plate technology is becoming more and more mature. In different periods, the requirements of metal curtain wall panels are different. So, let's take a look at the construction of metal curtain wall panels and optimization measures.

1 Metal curtain wall plate construction matters needing attention:

1. Problems faced by quality assurance data

During construction, if the quality assurance data is not kept properly, it may lead to data loss. Some small construction units do not have quality assurance data and handle it properly, resulting in serious inconsistency between engineering facts and quality assurance data. In the construction process, due to the incomplete quality assurance data, sometimes it is illegal to provide complete completion data in real estate units, which affects the construction period.

2. Problems in the installation of metal curtain wall panels

(1) Waterproof of curtain wall of real estate

According to the index, the metal curtain wall plate should have 3.5mm ~ 4.5mm waterproof sealing layer, and keep the surface of the sealing layer smooth. If the sealing layer is too thick, the tensile force will be weakened. If it is too thin, it is easy to leak water and the sealing effect will decrease. Not only the thickness of the sealing ring, but also the uneven laying of the sealing ring will affect the quality of the project.

(2) Connection part

The commonly used connection method for connecting metal curtain wall panels is embedding embedded parts or connecting with expansion bolts. If the position of the embedded parts is not embedded according to the design requirements, the secondary embedding phenomenon may occur during the construction, which may lead to unstable connection, such as the large distance between the bolt and the column.

(3) Material problems in the construction of metal curtain wall panels

In the process of purchasing materials, unnecessary quality certificates are often produced for the purchased materials, which brings additional difficulties to the inspectors in judging and screening the purchased materials. Metal curtain wall panels contain a lot of materials, such as hardware, bolts and other quality is not guaranteed, will bring great hidden dangers to the project. In addition, if the rubber for engineering structure is not confirmed at the time of purchase, the impact on the project will be irreparable. There are many kinds of glue, and their use methods are different. They need to be tested first and then sized; some need to be glued before testing. In the absence of an adhesion report, the method of use cannot be determined.

II. Countermeasures to optimize the construction of metal curtain wall plate:

1. Pre-construction period

In the process of preliminary works, practical supervision rules shall be prepared according to the specific works. Review the quality system of the construction unit. These reviews specifically include construction qualification review, personnel qualification review, management level review, etc. Review the relevant projects. In a project, the important parts are also reviewed. It is not only necessary to carry out technical disclosure on the difficulties and nodes in the construction, but also to be ready to communicate with the construction personnel at any time.

2. Lightning protection system and construction of metal curtain wall plate

Most of the modern metal curtain wall panels are made of metal materials, which are easy to be attacked by lightning if they are conductive. The main project itself has perfect lightning protection facilities, which can introduce lightning into the underground CFG pile foundation. However, after the maintenance of the curtain wall, the original lightning protection electrical device will not be able to play the original lightning protection effect due to the shielding effect of the curtain wall. According to the specific requirements of the specification, the lightning protection device of the metal curtain wall plate can make full use of the existing device in the design of the real estate, connect the beam column with the lightning protection net of the real estate, form a whole, and play a double protection role for the real estate and the curtain wall.

In addition, the metal curtain wall plate construction should pay attention to the use of type card connection, to prevent the node between the upper and lower column virtual column. The type card is formed by bending galvanized flat steel with a thickness of 4mm and a width of 60mm. The contact surface shall be galvanized and fixed to the height of the point with coated bolts. The connection between the column and the embedded parts also needs some attention. When connecting a post that needs to be grounded, the gasket between the post and the square wire should be removed at this time. The protective layer of the contact surface should also be removed at this time, and the surface should be coated with conductive adhesive.

3. Waterproof treatment of metal curtain wall plate

The fuselage of the building and the top of the metal curtain wall plate should form an organic whole, and the lightning arrester should be installed at this position. When the arrester passes through the top, if the glue is injected and closed improperly, water seepage will occur. During the construction process, the dry glue should be prevented from polluting the stone section. In case of pollution, the weather-resistant rubber shall be cleaned in time before sealing to prevent the two colloids from being incompatible with each other. In addition, as the construction progresses, the subarea is immersed in water to form a water film on the surface. After checking and confirming the occurrence of misleakage, the construction can continue.

The above introduction is the construction of metal curtain wall plate matters needing attention and optimization measures. If you need to know more, you can contact us at any time! Our company has many years of experience and looks forward to your joining at any time.