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Concept System® 77 is a thermally insulated window system that meets the highest standards for insulation, stability and security. According to thermal requirements, the heat transfer coefficient (Uf) for this system is 1.6 W/m²K, for standard opening windows. Thanks to its unique design, the system is ideal even for triple glazing. What’s more, the CS 77 is a design solution that meets Swiss Minergie® standards. The system’s properties for soundproofing, waterproofing, airtightness, as well as bulletproofing and fireproofing, meet even the most stringent European standards. What’s more, CS77 windows are available in different burglary classes (2 or 3), so they provide maximum security. In order to fit perfectly into any type of building, the system is available in different aesthetic variants: Functional, Renaissance and Hidden Vent. The CS 77 system provides comprehensive solutions for all types of windows, both inward and outward opening. The possibility of creating various combinations, also using CS 77 doors and CP 130 sliding systems, as well as Ventalis solutions, makes the CS 77 system successfully applicable to all types of construction, even if the highest safety standards must be met.
High Uf = 1.8 W/m²K
High Class 4 (600Pa) / Class E900 (900Pa) / Class C5 (2000Pa)
High RC2 - RC3 - Wk2 - WK3 - PAS 24
Min 600 mm
Max 2800 mm
Min 51 mm