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Soundproof windows

With heroal soundproof windows, you can reduce the sound level by up to 48 decibels (dB) and make a huge improvement to your quality of living.

Soundproof windows

Optimum noise and sound insulation for windows

What‘s so special about heroal soundproof windows?

100 % foam-filled

The profiles of heroal windows are 100 % foam-filled. The special filling process has been developed by heroal, and provides for ideal sound insulation levels, also for especially slim frames.

Soudproofing up to class 5

Aluminium windows by heroal achieve sound insulation levels of up to 48 dB. This meets the requirements of sound insulation class 5, according to German industry norm DIN 4109. The sound insulation class is the result of the individual combination of frame profile, thickness of glazing and professional installation.

Tailor-made soundproofing

Thanks to the modular design of heroal windows, you can adapt your windows to the sound insulation class you need. You can choose from various sealants and sealing zone designs, face widths and foam fillings.

Components of heroal soundproof windows

Laminated glass panes

Laminated glass panes - Laminated glass panes have an elastic interlayer between two or more layers of glass and increase the noise insulation of windows.

Various pane thicknesses

Various pane thicknesses - Sound-proof windows have a different thickness of glass on the panes. The higher the difference in thickness of the inside and outside pane, the higher the noise insulation.

Air gap

Air gap - The air gap between the individual panes has to be wide enough, so that the vibrations of the outside pane are not passed to the inside pane. Special materials for the air gap, such as PVB films or casting resins, absorb sound and only pass it on at reduced values.

Mass

Mass - The higher the mass of a pane, the less it vibrates. More sound waves hitting the pane can be reflected. Therefore, thicker and hence heavier panes generally reach a higher noise insulation value.

Installation according to certified installation manual

Installation according to certified installation manual - If sound-proof windows are not professionally installed, their noise insulation values may easily decrease by some decibels. Our heroal specialised partners make sure that your sound-proof windows are professionally customized and sealed in order to reach optimal sound and noise insulation values.

Material for window frames and sashes

Material for window frames and sashes - The material aluminium stands out for its insulation values and is perfectly suited for sound-proof windows.

Design of window frames and sashes

Design of window frames and sashes - The window frame is an essential part of efficient sound insulation. heroal window frames are foam-filled. Therefore, the window frame reflects and absorbs sound.

Our solutions for noise insulation up to 49 dB

heroal W 77 HI

  • Soundproofing class 1 - 5
  • Uf=0,80
  • RC 3

heroal W 77 HI >

heroal W 72

  • Soundproofing class 1 - 5
  • thermal insulation Uf=1,3
  • RC 3 (in combination RC 4)

heroal W 72 >

heroal W 72 RL

  • Soundproofing class 1 - 5
  • classical roundline contour
  • Suitable for listed buildings

heroal W 72 RL >

heroal W 72 CL

  • Soundproofing class 1 - 5
  • slanted classic line contour
  • refurbishment of an old building

heroal W 72 CL >

Which sound insulation class do you need?

Soundproofing class Sound reduction index (Rw) Traffic density Distance of house to the road
1 25 - 29 10 - 50 vehicles/h > 35 m
2 30 - 34 10 - 50 vehicles/h 25 - 35 m
3 35 - 39 50 - 200 vehicles/h 25 - 35 m
4 40 - 44 1,000 - 3,000 vehicles/h 100 - 300 m
5 45 - 49 1,000 - 3,000 vehicles/h 30 - 100 m
6 ≥ 50 3,000 - 5,000 vehicles/h < 100 m

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.

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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.

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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

1 Create a request with just a few clicks
2 We'll find the right heroal specialist for you
3 We'll send you the contact details

Click here to search for a specialist partner

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Further reading for your interest

Security windows
Passive house windows
Soundproof doors
Custom windows

Your advantages with heroal

Sustainability

With systems made from circular material, and our responsible thinking and action, we create sustainable living spaces for today’s and tomorrow’s generations.

Sustainability >
Unique surfaces

The best surface quality and a wide range of RAL-, DB- and Les Couleurs® Le Corbusier® colours, as well as wood, concrete and rust looks, offer greatest freedom of design.

Explore variety of designs >
Everything from one source

heroal windows, doors, roller shutters, sun protection, roller doors and canopies, as well as matching accessory systems, are perfectly coordinated in terms of design and function.

About heroal >

The heroal promise

When it comes to how we live and work, the most important thing is having choices. heroal knows that. As a family-run company with 150 years of experience, we believe that when it comes to quality, there are no compromises. That is why our products give you a way to create ideal solutions for nearly any requirement. As a technology leader, we believe that quality means more efficiency, more reliability and more performance – solutions that are "SIMPLY. BETTER."

  • 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