To1957
Basics:
Energetic standard of installed windows compared to German situation between 1949 and 1957:
Record ID: 3
End of time frame: 1957
U-Value:
Wooden window frames, single glazed: 5.0 W/(m2*K)
Wooden window frames, double glazed: 2.7 W/(m2*K)
Plastic frames: 3.0 W/(m2*K)
Aluminium/steel frames: 4.3 W/(m2*K)
g-Value:
Wooden window frames, single glazed: 0.87
Wooden window frames, double glazed: 0.75
Plastic frames: 0.75
Aluminium/steel frames: 0.75
26 September 2025