Wood-aluminium windows

PASSIVE is a wood-alu system for window constructions designed for passive housing. Thanks to its high utility and durability in the form of excellent thermal insulation, above average tightness, air permeability and wind load resistance, this system is suitable for modern, energy-saving and high performance buildings.

Classic Passive, as a certified component of Passivhaus Institut, meets its requirements for passive housing, that is: U-Value of entire unit < 0.14 in combination with triple-pane glazing where Ug-Factor = 0.14 or less

The system utilizes innovative insulation material of high durability utilises on foamed PS, which shares the properties of wood. Thanks to its high level of rigidity, frame clips can be screwed directly into it. Additional components that distinguish this system from more traditional AluClad designs include the breader main gasket, PE cord, additional central gasket.


  • Welded corner connection
  • Crimped corner connections
  • Certified wood section thickness 78 mm
  • Certified glazing thickness 48 mm

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