What are the requirements for passive house windows

2026-08-15

Passive house windows demand ultra-low U-value, excellent air tightness and high thermal performance for nearly zero energy buildings.

Passive house is a nearly zero-energy building standard popular across Europe. Passive house windows are critical components of the building envelope with stricter performance requirements than normal energy-saving windows.

Key requirements:

1.Whole window U-value ≤0.8 W/(m²K).

2.Ultra-high air tightness to minimize air infiltration.

3.Warm edge spacer for insulated glass units to avoid condensation at glass edges.

4.Triple glazing with double Low-E coating commonly adopted.

5.Wider PA66 thermal break strips for better insulation.

6.High-performance EPDM sealing gaskets.

Application: Luxury European residential buildings, net zero energy construction.

Sales tip: Passive house windows cost significantly higher than standard thermal break windows. Separate quotation and special testing reports are required.

Keywords:

Shanxi Xinhe

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