Terminology made easy

Terminology

What are U-values?

A window’s insulation value is becoming increasingly important, particularly in light of the ever-more stringent demands of the German Energy Conservation Regulation.By insulation value, we mean the U-value (heat transmission coefficient), which records how much heat the element loses per m² .

In a nutshell, this means:

The lower the U-value, the better the window is at retaining heat.

Ug = Value for the glass (g = glass)

Uf = Value for the frame (f = frame)

Uw = Value for the entire window (w = window)

When you purchase windows from one of our business partners, you don’t have to worry about meeting legal requirements: Rothenburg windows already exceed the heat insulation requirements of Germany’s Energy Conservation Regulation.
Find out more today by visiting your local window fabricator.

Office
No. 321, West Dastgerdi St., Tehran – IRAN

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aregar St., Industrial Town No. 1 & 3, Sanandaj – IRAN
Tel: +98 871 3157

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+98 21 8657

E-mail
info@rothenburg.co

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