LG37S Hot-rolled steel series

Produced with hot-rolling technology, the 37 Series delivers a bold and solid profile with exceptional structural stability. Its clean, powerful lines make it ideal for expansive floor-to-ceiling windows, public architecture, and industrial-style projects, creating a strong visual presence and architectural impact.

LG50S Cold-bent steel series

Formed through advanced cold-bending techniques, the 50 Series is distinguished by its slim and refined profile, combining strength with lightness. It is best suited for interior partitions, fine window divisions, and minimalist modern spaces, offering both stability and a sense of elegance.

LG65S Thermal-break steel series

With integrated thermal-break technology, the 65 Series combines the inherent strength of steel with superior insulation and soundproofing performance. It is particularly suited for villas, luxury residences, and high-performance commercial spaces, ensuring both comfort and long-term durability.

steel-look thermal-break aluminum alloy

Built on lightweight aluminum alloy with thermal-break design, the 65 Steel-look Series replicates the authentic appearance of steel while offering aluminum’s advantages of corrosion resistance, insulation, and reduced weight. Perfect for modern homes, apartments, and design-focused spaces, it balances performance with distinctive aesthetics.

Shanghai

Shanghai

Beijing

Shanghai

Shanghai

Shanghai

London

London

Australia

Qingdao

London

America

Thermal Break French Steel Windows: Where Heritage Design Meets Cutting-Edge Efficiency

Revolutionize architectural elegance with Thermal Break French Steel Windows. This product category transcends traditional steel fenestration by integrating a scientifically engineered thermal barrier within each steel window frame. Designed for discerning homeowners and restoration specialists, Thermal Break French Steel Windows deliver uncompromised aesthetics alongside quantifiable energy savings.

Core Technology & Structural Integrity

• Advanced Thermal Barrier System: A proprietary polyamide thermal break within the steel window frame physically separates interior/exterior metal components. This critical design slashes heat transfer by ≥65% compared to monolithic steel, ensuring U-values as low as 1.0 W/(m²K) with high-performance glazing.

• Material Excellence: Forged from corrosion-resistant, low-carbon steel (S355 grade), Thermal Break French Steel Windows provide inherent strength. Reinforced corners and precision-welded joints ensure structural stability for oversized units up to 3m² per sash.

• Seal Integrity: Triple EPDM gaskets combined with drainage chambers within the insulated steel windows create impervious barriers against water ingress (>9,000 Pa tested) and air leakage (<0.5 m³/h·m² @100Pa).

Customization & Performance Specifications

• Global Climate Adaptability: Whether facing Nordic winters (>-30°C) or Mediterranean heat (+50°C), Thermal Break French Steel Windows maintain consistent performance. Customize glazing packages:

• Double/triple Low-E argon fills

• Warm-edge spacers

• Acoustic laminated glass (up to 52dB reduction)

• Architectural Flexibility: Create floor-to-ceiling glazing walls, radius corners, or traditional French casements without compromising thermal efficiency. Standard and custom sizes (range: 300mm-3000mm) ensure perfect fitment.

• Finishing Durability: Choose from 250+ RAL powder-coated colors applied via electrostatic process. Certification: Qualicoat Class 2 (25-year warranty against fading/chipping).

• Hardware Integration: Compatible with European multi-point locks (tested to PAS24 security standards), friction stays, and concealed hinges allowing 180° opening.

Sustainable Building Solutions

• Energy Conservation: Validated by BREAM and LEED consultants, installations of Thermal Break French Steel Windows reduce annual heating/cooling costs by 25-40% in temperate zones. This ROI frequently offsets premium costs within 5-7 years.

• Environmental Stewardship: Steel components of insulated steel windows contain ≥85% recycled material and are 100% recyclable. The thermal break polyamide is REACH-compliant, free from halogens and heavy metals.

• Longevity Guarantee: Accelerated aging tests confirm ≥60-year service life with maintenance. Full documentation includes EN 14351-1 certification and Life Cycle Assessment (EPD) reports.

Installation & Global Project Support

● All Thermal Break French Steel Windows ship fully factory-assembled with certified installation manuals (EN/ISO 9001 protocols).
● Technical BIM/Revit files and thermal simulation reports provided for architects.
● Recent deployments: Heritage hotels in Quebec (-25°C winters), coastal villas in Dubai (salt-spray resistance), zero-energy homes in Germany.