Optimum noise and sound insulation for windows
What‘s so special about heroal soundproof windows?
Components of heroal soundproof windows

Our solutions for noise insulation up to 49 dB
Which sound insulation class do you need?
Testing soundproof windows
Comparison of windows with and without sound insulation
Test the noise reduction of the sound insulation classes that heroal windows can provide. You can use the slider to simulate the different sound insulation classes. Please turn on your speakers – with sound insulation class 0 the noise should be perceived as unpleasant.






Current sound insualtion class 0
Meaning of sound insulation class
The sound pressure level is reduced by 25 - 29 dB(A), the noise protection is very low.
The sound pressure level is reduced by 30 - 34 dB(A), which results in low noise protection.
The sound pressure level is reduced by 35 - 39 dB(A), which results in moderate noise protection.
The sound pressure level is reduced by 40 - 44 dB(A), the noise protection is perceived as good.
Very good noise protection is achieved by reducing the sound pressure level by 44 - 49 dB(A).
Extremely high noise protection by reducing the sound pressure level by 50 dB(A) or more.
Note: The actual sound insukation may differ from the audio examples.Advantages of heroal soundproof windows
Depending on the requirements, heroal soundproof windows can be upgraded as high as sound insulation class 5, which allows them to meet the highest sound insulation demands. Try them out for yourself. We would be happy to give you more information about the right acoustic window for your needs. Give us a call, visit our specialist partners and let us inspire you.
- Certified sound insulation
- Sound insulation classes 1 to 5
- Tested quality, made in Germany
- Robust and easy to clean
- Sustainable and environmentally friendly
Find the right heroal specialist
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Your advantages with heroal
- over 3,500 specialist partners worldwide
- products with tested quality
- family-run company with a long tradition
- made in Germany
- personalised design
- comprehensive range of services
- superior technical solutions