2025 | Professional

French Design Awards Silver Winner

Lizun 80 Narrow-edge Hidden Sash Window

Entrant Company

Beijing Tiandong Windows and Doors Co., Ltd.

Category

Product Design - Windows, Doors

Client's Name

Country / Region

China

Lizun 80 Narrow-edge Hidden Sash Window redefines the boundary of system windows with its minimalist aesthetics. It features an ultra-narrow frame, reducing the fixed front-facing surface within the window to just 13.8mm, thus greatly minimizing the proportion of profiles in doors and windows. The exterior combines EPDM strips and reinforcing ribs to hide the main sash structure, enhancing the overall visual effect. These designs help offer an unobstructed panoramic view, perfectly aligning with the aesthetic demands of contemporary consumers. Moreover, the isothermal triple-chamber energy-saving structure paired with high-load hardware enhances overall stability, meeting users' needs for ultra large and tall windows while ensuring safety. The pin-glued corner assembly process provides superior firmness and sealing.

The window features hollow glass and large thermal insulation strips, effectively reducing noise and maintaining a stable indoor temperature. Its equal-pressure open drainage system utilizes an equal-pressure cavity to eliminate pressure differentials and naturally expel rainwater outdoors.

Furthermore, the window sash position and matching screen can be customized to suit users' needs and home styles, ensuring ventilation while meeting living requirements.

Lizun 80 Narrow-edge Hidden Sash Window harmoniously blends ultra-narrow aesthetics with functional practicality through its profile design and structural engineering, offering users an expansive vision and a safe, comfortable living environment.

Credits

Liu Hongye
Tian Pengtao
Zhang Ben
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