Wood-aluminium windows
Thermal insulation Uf

> 0,64 W/(m2K)

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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Eco Windows USA provides top quality window and door solutions in Brass, Steel, Aluminum, Wood and PVC. With a capacity of producing over 5000 windows per day our systems are highly customizable, allowing for almost unlimited possibilities to arrange elevations and building interiors for both residential and commercial use. Our brand of window and door carpentry is produced by combining precisely selected materials, premium German hardware, latest technologies and long-term experience in production. We provide CAD design support as well as complete installation services.