The glass of DERCHI doors and windows is manufactured by Hong Kong Xinyi Glass (stock code: HK0868), with production standards strictly controlled to ensure the safety and beauty of the glass. Choose us, not only choose a door and window, but also choose a clear, safe, and comfortable living experience.
DERCHI doors and windows are designed and built for optimum performance using the latest energy-saving technology, providing maximum savings in any climate. They are the most energy-efficient dual-pane replacement solutions in the industry with high-performance insulated glass systems that exceed Energy Star requirements.








| SERIES | N2 Series Aluminum Casement Window |
| BRAND | DERCHI |
| PROFILE | 6063-T5 thermal break aluminum profile |
| THICKNESS | 2.0 mm aluminium thickness |
| AVAILABLE SIZE |
Opening Panel: Width 510-850 mm / Height 595-2400 mm Each Fixed panel ≤ 6 ã¡ |
| GLASS |
Automotive Grade Tempered Glass Double / Triple tempered glass Laminated / Low-E / Reflective / Tinted Glass |
| MIDDLE HOLLOW | 5MM + 27A + 5MM |
| HARDWARE | Germany brand WEHAG |
| SURFACE TREATMENT | Powder Coating, Anodized, Wooden Grain, PVDF Coating |






The N2 Series uses a high-performance 6063-T5 thermal break aluminum profile with a sturdy 2.0 mm wall thickness, engineered for enhanced structural durability and superior thermal insulation.
We feature automotive-grade tempered glass supplied by Hong Kong Xinyi Glass (HK0868). Configurations include double or triple tempered glass, with specialized options such as Laminated, Low-E, Reflective, and Tinted glass.
Our windows utilize a 5MM + 27A + 5MM middle hollow insulating layer. This wide 27mm air gap significantly reduces thermal exchange, exceeding Energy Star performance metrics and delivering exceptional climate control.
All DERCHI N2 Series casement windows are equipped with precision German WEHAG hardware fittings, providing smooth operation, high security, and long-lasting durability.
Opening panels support widths of 510-850 mm and heights of 595-2400 mm, with fixed panel sizes up to 6 square meters. Available surface finishes include Powder Coating, Anodized, Wood Grain, and PVDF Coating.