What are the materials for building glass curtain walls?

The materials of building glass curtain wall generally include: glass, frame materials, sealing materials and other filling materials.

1. Glass: The glass of building glass curtain wall is divided into fireproof glass, coated glass, laminated glass, tempered glass, semi-tempered glass, insulating glass, float glass and colored glass. The glass curtain wall of this kind of building glass curtain wall should choose curtain wall glass with reflectivity not greater than 0.30, and the lighting reduction factor should not be less than 0.20 if there are requirements for lighting function. Note: In public places, where curtain wall glass is easy to be hit, obvious warning signs should be set up.

2. Frame material: This is also a supporting material for building glass curtain wall, which determines the characteristics and service life of this building curtain wall. The thickness of the opening section and the closing section of the frame material of the building glass curtain wall should not be less than 3.0mm and 2.5mm； respectively. When the hole wall of the profile is directly connected with the screw by thread, its local thickness should not be less than the nominal diameter of the screw. (The picture below shows the frame fittings and descriptions of the building glass invisible curtain wall. )

3. Sealing materials: Generally, the sealing materials for building glass curtain walls include weather-resistant silicone structural sealant, EPDM, silicone rubber, etc. Usually, the curtain wall glass and the building metal structure are bonded with silicone structural sealant, and the compatibility test between the sealing material and the contact material must be carried out before use, so as to avoid engineering accidents within the validity period and affect the construction quality.

4. Other filling materials: the filling material of the building glass curtain wall is polyethylene foam rod, which is mainly used to fill the gap between the assembly materials and materials of the building glass curtain wall to achieve aesthetic effect; The thermal insulation material of building glass curtain wall is rock wool, whose main function is to make the building curtain wall have thermal insulation function and play the role of building energy saving.

Summary: Building glass curtain wall is really good, which can save a lot of energy. However, the structural design of this kind of building glass curtain wall should consider the factors such as building deformation and waterproof function. After all, building glass curtain walls are different from ordinary walls. Building glass curtain walls should cross floors and be integrated with the appearance of the whole building. Therefore, in addition to the necessary materials mentioned above, attention should be paid to curtain wall design.