ISO 9001ISO 14001
HRDEENG

Technical terms

Customer support


Video





What are U-values?


Simply said: the lower the U-value the better thermal insulation properties of the window.

You don't have to worry whether the windows produced by our firm meet the requirements of the Regulation on Energy Saving. Even today PVC windows meet future requirements of the Regulation. Please do not hesitate to find out more about it in our factory.


  • Ug = glass value (g = glass)
  • Uf = frame value (f = frame)
  • Uw = whole window value (w= window)


Window types


According to your wish, different types of windows can be produced i.e. single wing or multiple wing, sliding windows and sliding doors etc.

A very important role at choosing the type of the joinery have the optimal utilization of space or ventilation possibility. It should certainly fit into the overall architecture.