Commercial PVC-steel Composite Windows

For commercial building projects that demand exceptional structural performance and long-term energy efficiency, integrating Steel Reinforced PVC Composite Windows into your facade design ensures you meet rigorous modern building codes. These units leverage a galvanized steel core fully bonded within multi-chamber uPVC profiles, delivering wind load resistance up to Class C5 while maintaining a slim sightline for maximum daylight ingress. In high-traffic or multi-story applications, our Tilt and Turn PVC-steel Composite Windows provide dual-function operation—secure tilt ventilation and full inward opening for easy cleaning and emergency egress. For mixed-use or hospitality developments that blend residential comfort with commercial robustness, Residential PVC-steel Composite Windows deliver the acoustic insulation and thermal performance expected in living spaces alongside the impact resistance needed at street level. Where projects require an additional reinforcement layer without altering the exterior aesthetic, Steel Lined PVC Composite Windows incorporate an internal steel lining that fortifies the frame against forced entry and racking forces during transport and installation, all while preserving the smooth, maintenance-free white or woodgrain finish specifiers prefer. The entire range is fabricated using fusion-welded corners and continuous steel reinforcement, resulting in a composite unit that outperforms standard aluminum or vinyl windows in thermal bridging reduction, achieving U-values as low as 0.18 BTU/hr·ft²·°F with argon-filled triple glazing.


<产品名字>Commercial PVC-steel Composite Windows are manufactured to offer a straightforward upgrade path for storefronts, office buildings, schools, and light industrial facilities. The core galvanized steel profile is available in thicknesses from 1.5 mm to 2.5 mm, allowing adaptation to regional wind zones and security requirements. Below is a detailed breakdown of the standard technical parameters:

  • Profile system: 5-chamber uPVC with galvanized steel inner core, Class A according to EN 12608
  • Glazing capacity: Up to 40 mm sealed unit thickness, supporting double or triple glazing
  • Wind load performance: Tested to EN 12211, Class C5/B5 (2000 Pa design pressure)
  • Water tightness: Class E1050 (1050 Pa) per EN 12208
  • Air permeability: Class 4 (600 Pa) per EN 12207, effectively eliminating drafts
  • Acoustic rating: Rw up to 45 dB with appropriate glass specification
  • Thermal transmittance (Uw): Achievable from 0.18 to 1.2 BTU/hr·ft²·°F depending on glass and gas fill
  • Opening mechanisms: Tilt & turn, casement, fixed, projected top-hung, and parallel push-out
  • Hardware: Multi-point locking with mushroom cams and corrosion-resistant stainless steel keepers
  • Finish options: Co-extruded smooth white, laminated woodgrain foils, or painted in RAL colors on the exterior

The robust design translates into measurable lifetime cost savings and occupant comfort. Refer to the performance table for three commonly specified configurations:

ParameterFixed Window (Double Glazed)Tilt & Turn (Triple Glazed)Casement (Security Upgrade)
Frame depth70 mm88 mm70 mm
Steel core thickness1.5 mm2.0 mm2.5 mm
Overall U-factor (Uw)0.280.190.26
Solar Heat Gain Coefficient (SHGC)0.420.350.40
Visible Transmittance0.520.480.50
Forced Entry ResistanceRC2RC3RC4
Sound Reduction (Rw)36 dB42 dB38 dB

Each unit undergoes factory glazing and quality inspection prior to shipment, with corner sealing and drainage routing optimized for the local climate. The fusion-welded corners and continuous steel reinforcement create a near-monolithic frame that resists racking during transport and onsite handling, significantly reducing callbacks. These commercial-grade windows are designed for compliance with the Energy Star Most Efficient criteria in applicable regions and can contribute to LEED credits through improved envelope performance and daylighting. Custom sizes up to 1200 mm × 2400 mm per sash are readily available, with larger formats engineered to order.

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