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Carefree Windows and Doors

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What does K-value?

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What's a vapor barrier?

A thick layer to prevent the ingress of water vapor in parts. It must always be attached to the warm room side.





Our website is CO₂-neutral.
Thereby we reduce the CO₂-emission.


Trendsetting hardware solutions offers high functionality and security.


ISOGON is one of the winners of this year's Great Place to Work® competition "Best Employers 2019 in Berlin and Brandenburg".









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