Si Window – Energy-Efficient uPVC & Aluminum Window Systems
Si Window – Energy-Efficient uPVC & Aluminum Window Systems
Our Si Series windows feature multi-chamber uPVC or thermal-break aluminum frames (profile depth 60/70/80mm), compatible with double or triple Low-E insulated glass units.
Equipped with EPDM multi-seals and multi-point locking hardware for excellent thermal insulation (U-value ≤1.2 W/m²K), sound reduction (Rw 30–40dB), and enhanced security.
Basic Specifications:
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Material: uPVC (galvanized steel reinforced) / Thermal-break Aluminum
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Profile Depth: 60mm / 70mm / 80mm optional
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Glazing: 5+12A+5mm double or triple glazing, Low-E & Argon available
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Hardware: Multi-point lock, stainless steel friction stay
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Colors: White, Grey, Black, Woodgrain foil or RAL powder coat
Typical Applications:
Ideal for villas, apartment renovations, office buildings, schools, and coastal properties requiring weather resistance and low maintenance.
Contact us for custom sizes, CAD drawings, and factory-direct pricing.
