The ONE sliding window system by Orama Minimal Frames redefines transparency and minimalism in modern architecture. Designed for exterior applications, the system delivers floor-to-ceiling frameless openings with a fully concealed track, achieving unobstructed views and a sleek architectural finish. With a minimum profile facing width of just 24 mm and track visibility limited to 4 mm, ONE is the standard solution for architects and homeowners seeking elegance with performance.
Crafted with hand-made parts, invisible drainage, and an adjustable base to overcome construction imperfections, this system ensures durability and ease of installation. Each sliding leaf runs on at least eight stainless steel wheels, enabling smooth sliding even at large dimensions. The system accommodates maximum leaf heights of 6.5 m, widths of 3 m, weights up to 1000 kg, and areas up to 12 m² for sliding and 18 m² for fixed panes.
Performance is certified to the highest European standards: Uw values range from 0.7 to 1.7 W/m²K depending on glass type, air permeability is rated Class 4 (EN 12207), resistance to rain penetration Class 7A (EN 12208), and resistance to wind loads Class C5 (EN 12210). Acoustic insulation reaches up to 39 dB, while burglary resistance complies with ENV 1627.
Available with OMICRON double glazing for panes up to 500 kg or ΩMEGA triple glazing for up to 1000 kg, the system also supports motorized automation for heavy panes, integrated insect screens, and uniform profile posts. 
The result is a minimal frame sliding system that combines design purity with cutting-edge thermal, acoustic, and security performance.
Source: Orama Minimal Frames with additional information added by Glass Balkan
