The fully hidden-frame curtain wall is a relatively common form of building curtain wall. The following will introduce it from aspects such as its definition, structural composition, characteristics, and application scenarios:

Definition
The fully hidden-frame curtain wall is a form of building curtain wall in which the glass is fixed to the aluminum frame with silicone structural sealant. The aluminum frame is completely hidden behind the glass, and the aluminum frame is not visible from the outside. It gives the building's appearance a simple and smooth overall effect.

Structural Composition

• Glass panel: Generally, safety glass such as tempered glass, heat-strengthened glass, or laminated glass is used. It has good strength, transparency, and impact resistance, and can withstand external forces such as wind loads and seismic actions.
• Aluminum alloy frame: Usually processed from aluminum alloy profiles, including columns and beams, it is the main supporting structure of the curtain wall. The aluminum alloy frame is connected to the main structure through connectors and provides installation and fixing points for the glass panel.
• Silicone structural sealant: It is used to bond and fix the glass panel to the aluminum alloy frame, playing the role of structural connection and sealing. It has good bonding performance, weather resistance, and anti-aging performance, ensuring the safety and sealing of the curtain wall during long-term use.
• Other accessories: Such as rubber seals, foam rods, hardware connectors, etc. The rubber seal is used for the sealing between the glass and the frame to prevent the penetration of rainwater and air. The foam rod is used to fill the gap between the glass and the frame, providing support for the sealant. The hardware connectors are used to connect the aluminum alloy frame to the main structure or other components, ensuring the overall stability of the curtain wall.

Characteristics

• Aesthetic appeal: The most significant feature of the fully hidden-frame curtain wall is its simple and smooth appearance. Without obvious exposed frames, it can make the building present a transparent and lightweight effect, enhancing the modern and artistic atmosphere of the building.
• Good sealing performance: By using sealing materials such as silicone structural sealant and rubber seals, it can effectively prevent the penetration of rainwater and air, improving the water tightness and air tightness of the curtain wall and providing a good indoor environment for the building.
• High safety: The glass panel uses safety glass and is firmly bonded to the aluminum alloy frame through silicone structural sealant. It can withstand large wind loads and seismic actions, ensuring the safety of the curtain wall during use.
• Convenient processing and installation: The aluminum alloy frame and glass panel can be prefabricated in the factory and then assembled on the construction site, greatly improving construction efficiency and shortening the construction period.

Application Scenarios

• Commercial buildings: Such as office buildings, shopping malls, hotels, etc. The fully hidden-frame curtain wall can create a high-end and imposing image for commercial buildings, attracting people's attention. At the same time, it can meet the requirements of commercial buildings for lighting, ventilation, and the indoor environment.
• Cultural buildings: Such as museums, theaters, libraries, etc. The fully hidden-frame curtain wall can create a unique artistic atmosphere for cultural buildings, enabling them to blend in with the surrounding environment and showcase the connotation and characteristics of cultural buildings.
• Public buildings: Such as airports, stations, stadiums, etc. The fully hidden-frame curtain wall can not only meet the requirements of public buildings for large spaces and long spans but also provide good lighting and views for public buildings, enhancing the quality and image of public buildings.
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