Appearance quality: The appearance of the curtain wall panel should be neat and tidy. The non-decorative surface does not affect the damage of the product. The appearance quality of the decorative surface should meet the requirements of Table 1.
Dimensional tolerance: The allowable deviation of the size of the curtain wall panel should meet the requirements of Table 2. The allowable deviation of the dimensions of the special specification can be agreed between the supplier and the buyer. The thickness of the aluminum of the curtain wall and the thickness of the coating shall comply with the requirements of Table 3. The performance of the curtain wall panel should meet the requirements of Table 4.
Fire performance requirements
According to the fire level, it is divided into ordinary type and fireproof type aluminum-plastic composite board. At present, the national curtain wall standard has no special requirements for fireproof level for aluminum-plastic composite board products for building exterior wall.
(1) Ordinary aluminum-plastic composite board: Most of the aluminum-plastic composite board products for exterior curtain wall and roofing on the market are common type.
The core layer of the common aluminum-plastic composite board is made of low-density polyethylene (LDPE), and the finished core layer is black.
(2) Flame-retardant aluminum-plastic composite panels are further classified into a flame retardant grade (C grade) and a quasi-combustible grade (B grade).
Class 1C fireproof aluminum-plastic composite board: using halogen-free low-smoke flame-retardant polyethylene core layer.
Class 2B fire-resistant aluminum-plastic composite board: the core layer is made of aluminum hydroxide as the main component (content is up to 90%), and the color is usually white or grayish white.
Implementation of the standard GB/T 17748 "aluminum-plastic composite board"
GB8624-2006 "Building Materials and Combustion Performance Classification"
Commercial And Household Glass
There are differences in commercial glass and home glass in multiple aspects:
1. Use
Commercial glass:
-It is mainly used for commercial buildings, such as office buildings, shopping malls, hotels, etc. Its functions often need to meet the specific needs of public spaces. For example, the glass window of large shopping malls requires good display effects and attract customers' attention.
-In some commercial places, such as banks, jewelry shops, etc., glass may need higher security, such as bulletproof and anti -theft.
Home Glass:
-In for family houses, such as windows, doors, furniture, etc. Pay more attention to meeting the needs of family life, such as providing lighting, protecting privacy, and decorating home furnishings. For example, the window glass of the bedroom may choose to have a shading function to ensure sleep quality.
2. Performance requirements
Commercial glass:
-The intensity requirements are high, and can withstand greater traffic and possible external forces. For example, the glass curtain wall of a commercial building needs to withstand the test of natural factors such as wind and rain, wind pressure.
-The optical performance may require higher transparency and uniformity to ensure the brightness and beauty of the business space.
-An sound insulation performance is also very important, especially in hotels, conference rooms and other places, need to reduce interference of external noise.
Home Glass:
-A safety is the key, especially for families with children and the elderly. Safe glass such as tempered glass may be selected to prevent serious damage to people when crushing.
-The insulation performance is also important, which can effectively reduce the energy consumption of the family. For example, double -layer hollow glass can play a better thermal insulation effect.
3. Design characteristics
Commercial glass:
-In large size, to meet the needs of large -scale lighting and open vision of commercial buildings. The design pays more attention to the coordination with the overall style of the building, reflecting the sense of modernity and fashion.
-It special coating technology, such as low -radiation coating glass to reduce energy consumption and ultraviolet radiation.
Home Glass:
-The design is more diverse, and you can choose different colors, patterns and textures according to the family decoration style. For example, art glass can add an artistic atmosphere to home.
-If attention to details and humanized design, such as easy cleaning, convenient installation, etc.
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