
POSCO Center is a landmark twin-tower office development in Beijing’s Wangjing business district (Tower A approx. 155 m, Tower B approx. 120 m). Its curved glass curtain wall admits direct sunlight, causing marked temperature swings and glare on the upper office floors. ESEC One-Way View-Through Energy-Saving Window Curtains were installed in the office areas without altering the facade. Interior light is now noticeably softer and window-side zones no longer radiate heat, while city views such as Wangjing SOHO stay clearly visible.

Meeting lounge · curtain half-lowered, Wangjing SOHO clearly in view

Corner curtain wall · curtain half-lowered on demand

Window-side workstations · soft light, clear view, no radiant heat
Retrofit Highlights
- No facade alterations on curtain-wall buildings — interior-side installation with zero impact on the exterior or property management
- Insulation without losing the view: city vistas preserved, direct glare eliminated
- Even light at window-side desks and reception areas, no more radiant heat, higher comfort
- Virtually no auxiliary shading needed by day — both lighting and cooling energy use fall
ESEC One-Way View-Through Energy-Saving Window Curtain: reflects 88% of solar radiant heat, with 95%+ near-infrared reflectance and a 99.9% UV blocking rate. It insulates in summer and retains warmth in winter; ceiling-mounted indoors without touching the glass, formaldehyde-free and B1 flame-retardant. Suitable for offices, hotels, financial institutions, government buildings and more. To estimate the energy-saving potential of your building, try the online energy-saving calculator.
Building exterior photo: DingTalk / Wikimedia Commons, CC BY-SA 4.0