Door and window frame attachments
Products
Door and window frame attachments |
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Polyurethane composite materials have performed exceptionally well in the application of building curtain walls and windows. Their comprehensive performance, such as insulation and fire resistance, has been significantly enhanced. At the same time, they possess multiple advantages including energy conservation, fire resistance, sound insulation, light weight, and dimensional stability, making them an ideal choice for the new generation of energy-efficient curtain walls and windows.
Performance Advantages
Comparison Category | Polyurethane Composite Doors & Windows | Traditional Thermal Break Aluminum Windows |
Thermal Conductivity | 0.22-0.34 W/(m·K) (1/470~1/700 of aluminum) | 160 W/(m·K) |
U-Value (Overall Thermal Transmittance) | Can achieve 0.8 W/(㎡·K) (meets passive house standards with triple-glazing) | Typically 1.5-2.5 W/(㎡·K) |
Wind Load Resistance | Meets the highest national standard (capable of resisting 12-level typhoons) | 6-8 levels |
Fire Resistance | B1 fire retardant (1-hour integrity with charring but no dripping) | No fire resistance (prone to deformation at high temps) |
Sound Insulation | ≥42 dB (reduces traffic noise by 60%+) | 30-35 dB (requires additional soundproofing) |
Weight | 25% lighter than aluminum | High density (2.7 g/cm³) |
Weather Resistance | UV-resistant, salt spray corrosion-resistant, lifespan ≥30 years | 15-20 years (prone to corrosion in coastal areas) |
Thermal Expansion Coefficient | 0.64×10^-5/K (similar to concrete, ensuring stable sealing) | 23×10^-6/K (prone to gaps) |
Carbon Footprint | Manufacturing emissions are 1/8 of aluminum's | High energy consumption from electrolysis |
Design Flexibility | Supports curved/irregular windows (pultrusion molding) | High cost for complex designs |
Lifecycle Cost | Reduces by 30%+ (energy savings offset initial investment) | Higher maintenance costs |
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