Performance comparison between aluminium curtain wall and composite aluminum sheet:
1, material
Composite aluminium sheet - two layers of 0.5mm thick pure aluminium sheet with PVC or PEC plastics rolled in the middle, heat bonded.
Aluminum curtain wall - 2 - 3 mm aluminum alloy plate.
2. Fluorocarbon Coatings
Composite aluminium sheet - one-off roll printing, coating thickness is generally 20 microns.
Aluminum curtain wall are sprayed twice or three times, and the coating thickness is generally 30-40 um.
colour
Composite aluminium sheet - can choose less color varieties, generally more gray, specific color needs a large order to single processing, it is difficult to achieve. Good color identity, but directionality, reduce the yield.
Aluminum curtain wall - can be selected according to the design and owner's requirements.
4, life expectancy
Composite aluminium sheet - about 10 years.
Aluminum curtain wall - over 50 years.
5. Closure
Composite Aluminum Plate - Quadrangular Open.
Aluminum curtain wall - quadrangular welding seam.
6. Wind resistance
The deformability of composite aluminum sheet under wind pressure is poor.
Aluminum alloy veneer - good deformation under wind pressure.
7. Temperature Resistance Denaturation
The expansion coefficient of composite aluminium sheet - aluminium sheet differs greatly from that of plastics, and it is prone to foaming and peeling.
Aluminum curtain wall - the same material, when the temperature changes, the wallboard itself has no effect.
8. Lightning Resistance
Composite Aluminum Plate - Without lightning strike, strong current can hardly be grounded through the composite Aluminum Plate, and the 0.5mm thick Aluminum Plate will be broken down.
Aluminum alloy veneer - can be used as a good conductor of electricity, through the building grounding system to lightning tremendous current quickly to the underground.
9. Wallboard Shape
Composite Aluminum Plate - due to material constraints, suitable for processing simple shape, not suitable for bending angle, bending less than 90 degrees is prone to fracture.
Aluminum curtain wall - easy to process into special-shaped plate, bending angle range is large.
10. Processibility
Composite aluminium sheet - can be processed on site, and can cope with the size changes caused by site construction errors.
Aluminum alloy veneer - manufactured by facturer, has poor adaptability to site building errors and high requirements for secondary design.
11. Yield Rate
Composite aluminium sheet - generally 60%-70%.
Aluminum curtain wall - 100%.
12. Yield of finished products
Composite Aluminum Plate - Groove is manually operated on site. If the depth of groove is not well controlled, it will damage the outer layer of Aluminum Plate and cause fracture in bending, resulting in waste products. The yield of finished products is generally 96%-98%.
Aluminum alloy veneer - manufactured by the factory, the finished product rate is 100%.
13. Construction quality
Composite Aluminum Plate - Because the wallboard is mostly processed on the spot, the quality control conditions are poor, and the Jerry work and material reduction are easy to occur in this link. The quality of wallboard will affect the construction quality.
Aluminum curtain wall - production plant according to international standards to control the quality of production, wallboard quality is reliable, providing the premise to ensure the quality of construction.
14. Scope of application
Composite aluminium plate - suitable for door decoration, elevated corridor, footbridge, low curtain wall.
Aluminum curtain wall - suitable for high-rise curtain wall and large area curtain wall.
15. Environmental Protection
Composite Aluminum Plate - When exposed to high temperature, harmful gases will be produced. It is not fireproof and difficult to recycle.
Aluminum curtain wall - Fire protection, easy recovery, no pollution to the environment.