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Our windows protect the environment

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Saving energy with ISOGON windows

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What's the level of light transmittance?

It describes the percentage of sunlight, which is transmitted from outside to inside through a glass pane. A simple 4 mm glass sheet has a light transmittance of 85%. A heat-insulating glass pane (2X4 mm, 16 mm gap) with the proper K value of 1.1 lets pass at least 76% of the light.





ISOGON has DIN EN ISO 9001 certified quality management system


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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