OKNOPLAST window PILAR, double-sash balcony window with a low threshold Win Step - movable central mullion

• Proprietary Design: A unique, proprietary profile carefully designed to combine excellent aesthetics with exceptional functionality.
• Profile Specs: A 5-chamber frame profile and a 4-chamber Class A sash profile with a frame and sash depth of 76 mm.
• Aluminum Look: A modern finish that gives the window an exclusive, industrial appearance.
• Seamless Lines: The absence of a glazing bead and an invisible external sash frame create a consistent surface on both the exterior and interior, giving the room a clean, elegant line.
• Triple Gaskets: Three gaskets for maximum sealing—an additional center gasket effectively blocks heat loss and protects against noise and moisture.
• STV Technology: An innovative glass-bonding method that increases stability and improves durability.
• Market Innovation: The first PVC construction on the market with a slim floating mullion and a central handle made using STV technology—offering perfect symmetry, aesthetics, and functionality that no other PVC window in the world provides.

THERMAL TRANSMITTANCE
Uw = 0.74 W/(m²K)*

SOUND INSULATION RAITING
Rw = 37 (-2; -7) dB**

* For a reference window with 4/18/3/16/3 glass with Ug = 0.5 W/(m²K) and a Warmatec warm edge spacer.
** For a reference window measuring 1230 x 1480 mm with 4Xglass 4TF/18cAr/3/16cAr/3TF glass.