RS-CONCEPT
Salamander greenEvolution Flex 76 – Energy-Efficient PVC Windows for Modern, Sustainable Buildings
The Salamander greenEvolution Flex 76 system is an advanced PVC window solution designed for modern, energy-efficient and passive-standard buildings. With a 76 mm installation depth, 5-chamber frame structure, and glazing options up to 48 mm, this system provides excellent insulation, durability, and design flexibility — making it ideal for both residential and commercial projects.
Built to reduce heat loss and energy consumption, greenEvolution Flex 76 combines cutting-edge engineering with timeless aesthetics, helping investors and property owners achieve long-term value and lower heating costs.
⭐ Key Technical Features
➤ 76 mm installation depth
Ensures high thermal stability and optimal profile performance.
➤ 5-chamber frame design
Improves insulation and enhances structural rigidity.
➤ Uw value from 0.83 W/m²K (with Ug = 0.5)
Excellent heat transfer coefficient for passive-standard construction.*
➤ Window Uw = 1.4 W/m²K
According to reference size 1230 x 1480 mm.
➤ Two double-chamber gaskets (MD middle gasket)
Enhanced air tightness and improved thermal performance.
➤ Glazing up to 48 mm
Compatible with highly insulated double or triple glazing.
➤ Premium Roto NX hardware & aluminum handle
Smooth operation, reliability, and increased security.
➤ Wide selection of decorative veneers
Customize the design with classic, modern, or wood-like finishes.
➤ 5-year guarantee
Assured durability and long-term performance.
*values depend on specific glazing configuration.
⭐ Why Choose greenEvolution Flex 76?
The greenEvolution system is engineered to meet the requirements of low-energy and passive buildings.
Thanks to the MD central gasket and optimized chamber structure, the system significantly reduces heat loss, helping:
The elegant profile geometry paired with a wide range of veneers ensures seamless adaptation to any architectural design — from minimalist modern homes to traditional buildings.
greenEvolution Flex 76 is the perfect choice for investors seeking a balance of high performance, aesthetic appeal, and sustainability.