Advantages and disadvantages of glass curtain wall

1. Architectural aesthetics, architectural function, building energy saving, building structure and other factors are organically unified, and the building presents different colors from different angles, which gives people dynamic beauty with the changes of sunshine, moonlight and lighting.

2. Lightweight and beautiful, not easy to pollute, saving energy.

3. It can absorb infrared rays, reduce the solar radiation entering the room and reduce the indoor temperature.

disadvantaged

1. Poor fire prevention ability

Glass curtain wall is a kind of incombustible material, but it will melt or soften in case of fire, and the glass will break in a short time in fire, so the fire protection requirements of buildings should be fully considered in architectural design.

2. Structural adhesive is easy to fail.

Due to the unfavorable factors of long-term natural environment, structural adhesive is easy to age and fail, causing the glass curtain wall to fall off. Then, try to use open-frame or semi-hidden frame glass curtain wall in the design, because even if the structural adhesive fails, the probability of glass falling will be greatly reduced due to the support and constraint of the frame.

3. Thermal stress will cause glass to break.

Glass expands when heated. If the heating is uneven, tensile stress will be generated inside the glass. When small cracks appear at the edge of the glass, these small cracks are easily affected by thermal stress, and finally the glass will be damaged. Therefore, when installing the glass, the edge of the glass should be finely processed to reduce the occurrence of cracks.

4. Water leakage

There are many reasons for water seepage in glass curtain wall, but the main reason is that construction has a great relationship with sealing materials, so we should choose the constructor with excellent technology and materials that meet national standards. To minimize water seepage.

5. Warming and heat island effect

The research of optical experts shows that the reflected light of mirror architectural glass is stronger than sunlight, and its reflectivity is as high as 82%-90%. The sunlight in summer reflects into the living room, which makes the average room temperature rise by 4 to 6 degrees Celsius.

6. High energy consumption

In order to pursue visual effects, a large number of large bay glass curtain walls are used in high-rise buildings in cities, which leads to the phenomenon of "Leng Xia fever in winter" in buildings, and high-power air conditioners have to be used to adjust the room temperature indoors.

7. migratory bird killer

According to FLAP (Fatal Light Awareness Program), in Toronto alone, one to nine million migratory birds die from these glass curtain walls every year.

Extended data

routine maintenance

(1), clean with solvent. Use solvents such as xylene, toluene, inorganic alcohol or ether to remove grease and polishing materials, and then clean and rinse. Be careful not to use too strong solvent to avoid damaging the sealant for fixing the glass.

(2) Normal cleaning and flushing. Glass should be cleaned, rinsed and dried frequently, especially during construction. Soft and clean dust-free cloth, neutral soap, paint cleaner or weak acid cleaning solvent should be used. Rinse with clear water immediately after washing, and then wipe off the residual water with a clean rubber broom.

Because fingerprints, oil stains, stains, dust, slag dust, sealant residue, scratches and any surface scratches on coated glass are more conspicuous than those on ordinary glass, you should be extra careful when managing and cleaning coated glass. Therefore, during the whole project, the coated glass may need to be cleaned frequently, and sandwich plates should always be used between coated glass windows.

(3) Surface damage. Contaminated by concrete, alkali-containing or fluorine-containing substances sometimes released from concrete or building masonry during storms may pollute or corrode glass. The concrete structure in front of the window arch should be designed so that dripping water will not drip on the glass. When manufacturing precast slabs and other concrete wall materials, they should be fully stirred to make them become uniform hydrates and completely solidified. Surface treatment of concrete (acid sand blasting, diamond holes, grouting, application of waterproof materials, etc.). ) should be completed before the installation of glass, and remove debris.

References:

Baidu encyclopedia-glass curtain wall