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What's the level of light transmittance?

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What's relative humidity?

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How to ventilate effectively?

With new, sealed windows proper ventilation is very important! A  toppled window is ineffective! Periods of airing by opening the window on the other hand, will save you from mildew on the walls.





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


Our windows carry the
CE-mark which indicates the conformity of the product
to the European guidelines.


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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