ᐅ How to Identify Soundproof Glazing?

Hello, I have a question. We chose a higher sound insulation rating for some windows for an additional cost.

Since the installation of the windows was quite chaotic, I’m not sure if the higher sound insulation windows are installed in the correct rooms.

We have installed this type several times, so that’s why I’m concerned. Now my question is: how can I identify this directly on the window?

I have already checked but couldn’t find anything directly on the window. Does anyone have a tip?

Thank you very much

Unfortunately, I no longer have records of what those codes are, but if you look at the edge of the glazing unit, you will see an imprint – you can then look it up online (and it should differ between the windows in question).

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Perfect, thank you. I will check that right away and look forward to it. Best regards