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Rationel - Durability

Rationel put their products through a vigorous testing process to ensure they can withstand extreme wear and tear and the worst weather conditions that they may encounter.  This offers you the comfort and peace of mind that not only will your Rationel product look fantastic in your home, but that you can be confident that your windows are a long term investment, created to stand the test of time and mother nature.

For more information about Rationel's rigorous testing processes, have a look at the videos below:

 

Extended Watertightness
Wear and tear
Windresistance
Watertightness