What soundproofing is required for a front door?

An exterior door should have a sound insulation value of at least 27 dB, which corresponds to soundproofing class 1 according to DIN 4109. This reduces external noise by 27 dB. Depending on the structural conditions, the soundproofing must be increased accordingly. In general, the higher the soundproofing, the more pleasant the living atmosphere and the higher the quality of living.

What is the difference between Rw , R and Rw , P ?

The values Rw ,R and Rw ,P are often specified for the sound reduction index of doors. Rw ,R describes the required sound reduction index of the front door when installed. Rw ,P , on the other hand, describes the laboratory or test bench value, which is determined during the sound insulation test. Secondary sound paths or installation tolerances of the soundproof door are not taken into account in the laboratory, so the test value Rw ,P should be 5 dB higher than the required sound reduction index. The rule of thumb is: Rw ,R = Rw ,P - 5 dB.

What value is decisive when buying a soundproof door?

When buying a soundproof door, make sure that the sound reduction index Rw ,P is at least 5 dB higher than the required sound reduction index Rw ,R . If, in addition to the test value (Rw ,P ), the sound reduction index in the installed state (Rw ,R ) is also specified, this value should be used as a guide.

What do dB and Rw mean?

Rw describes the weighted sound reduction index as a component-related parameter for the airborne sound insulation of installed components such as doors or windows. The sound reduction index Rw is given in decibels (dB), the unit for measuring sound levels.

Soundproof doors

More peace and quiet with a heroal soundproof door, because it insulates sound by up to 39 decibels.

Soundproof doors - noise protection for your home

Soundproof doors from heroal ensure greater peace and quiet and contribute to health and well-being. They combine effective noise protection with burglar resistance, heat insulation and a wide range of design options. Whether in a new build or during modernization - enjoy noticeably more qualit

Advantages of heroal soundproof doors at a glance

Soundproofing up to class 3

Tested soundproofing class 3 for sound insulation values up to 43 dB
Optimum values thanks to coordinated door infill panel, frame profile and installation
For more comfort and well-being

Construction

Sophisticated aluminium construction based on decades of experience
High-quality sealants and insulation for maximum effect
Precisely coordinated components

100 % foam fill

Door profiles are fully foam-filled
Complete foam fill increases soundproofing
The heat insulation of the door is also improved

Components of the heroal soundproof door

More peace and quiet at home depends on perfectly coordinated details. Various components contribute to heroal soundproof doors achieving a high level of sound insulation and reliably keeping noise outside.

The right soundproof door for every requirement

heroal D 72

Soundproofing class 3
Heat insulation U_D > 1.0
RC 3

heroal D 72 >

heroal D 72 RL

Soundproofing class 3
Roundline outline
RC 3

heroal D 72 RL >

heroal D 72 CL

Soundproofing class 3
Classic Line outline
RC 3

heroal D 72 CL >

heroal D 92 UD

Soundproofing class 3
Passive house certified U_D > 0.7
RC 3

heroal 92 UD >

Aluminium front door - Exposed door in gray with red handle strip

The heroal front door configurator

With the heroal front door configurator, you can design your aluminium front door individually - from the design to the color scheme. Discover the exclusive Les Couleurs^® Le Corbusier^® colors and create harmonious combinations that perfectly match your home. In addition, other color worlds such as heroal SD, RAL and DB are available in the configurator so that you can individually adapt your front door to your style and the architecture of your home. Choose between different sash types, hinges, handle strips and technologies and put together your personal dream front door step by step. Start the configuration now and experience how easy it is to connect design, comfort and security.

Configure your front door now >

The soundproofing classes for soundproof doors according to DIN 4109

Soundproofing class	Sound reduction index R_W (dB)	Traffic density	Distance of the house from the street
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 soundproofing classes for soundproof doors

Experience for yourself how effectively a heroal soundproof door reduces noise. With our interactive soundproofing tool, you can simulate the noise reduction of the different soundproofing classes - for windows (class 1-5) and doors (class 1-3). Simply move the slider and hear the difference: with soundproofing class 0, the noise is clearly disturbing, while higher classes bring noticeably more peace and quiet into your home. Please turn on your speakers and test live which soundproofing class is ideal for your requirements.

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.

A reduction of the sound pressure level by 30 - 34 dB(A) only leads to low noise protection.

The reduction of the sound pressure level by 35 - 39 dB(A) means 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) and more.

^{Note: The actual noise insulation may differ from the audio examples.}

FAQ

Where can I buy heroal soundproof doors?

heroal works exclusively with qualified specialist partners. You can quickly find a supplier in your area using the specialist partner search on our website. There you will receive advice, custom-made products and professional installation.
Find a specialist partner >
Are heroal soundproof doors made to measure?

Yes, every soundproof door is individually manufactured according to your requirements. This is how we ensure that the design, dimensions and insulation values perfectly match your home and your requirements.
Front doors made to measure >
What soundproofing is required for a front door?

This depends on the location of your home. On busy roads or in noisy surroundings, a door with soundproofing class 3 (up to 39 dB) is recommended. In quiet residential areas, a lower class is often sufficient. Our specialist partners will be happy to advise you on this.
Why is professional installation essential?

Only when the frame, door leaf and sealants are installed precisely can the soundproof door develop its full insulating capacity. This is why only trained heroal specialist partners carry out the installation - for reliable soundproofing in the long term.
Find a heroal specialist partner >
What do dB and R_w mean?

dB (decibel) is the unit of measurement for sound pressure. The R_w value describes the sound reduction index of a door and indicates how much the sound is reduced. The higher the Rw value in dB, the better the soundproofing.
What value is decisive when buying a soundproof door?

The sound reduction index R_w is decisive. It indicates how many decibels the noise level is reduced by the door. To make an informed choice, you should consider this value in relation to the background noise at your location.
Does a soundproof door also protect against low-frequency noise such as traffic or airplanes?

Yes, heroal soundproof doors are designed to significantly reduce both high-frequency and low-frequency noise. It makes sense to choose a door with a high soundproofing class, especially in the case of road or aircraft noise.
Can I also combine soundproof doors with Smart Home?

Naturally. heroal aluminum entrance doors with soundproofing are compatible with all common smart home systems. This means you can operate your door conveniently using a fingerprint, code or smartphone - without compromising on noise protection.

Let us inspire you

That's why heroal soundproof doors are the right choice

As a family-run company with over 150 years of experience, we stand for quality without compromise. Our products are durable, well thought-out and tailored to your needs. Soundproof doors from heroal combine effective noise protection with burglary resistance, heat insulation and modern design - for more peace and security in your home.

Brochure heroal front doors

Outstanding sound and burglary protection up to class 3 or RC 3
Energy-efficient thanks to insulation values up to passive house level
Individual design with a wide range of designs and colors
Over 3,500 specialist partners worldwide
Tested quality from Germany
Family business for more than 150 years

Find the right heroal specialist

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Successful together: the benefits of working together

Everything from a single source

heroal offers complete solutions for windows, doors, sun protection and more - perfectly coordinated and individually adaptable to your requirements in terms of security, comfort and energy-efficiency.

Individual design

Design your home according to your wishes: With over 500 RAL colour shades, exclusive shades from Les Couleurs^® Le Corbusier^®, surfaces in wood, concrete or rust look and 250 textiles for sun protection, you can enjoy maximum freedom in the best quality.

Service & specialist partners

Benefit from simple planning with our configurators, the inspiration finder and many references - and find the right expert to implement your project via our network of specialist partners.

Quality & responsibility

With heroal, you can rely on a family-run company with over 150 years of experience and 100% production in Germany. Our durable, sustainable systems and the highest quality workmanship ensure a high-quality, energy-efficient and sustainable home.

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Soundproof doors - noise protection for your home

Advantages of heroal soundproof doors at a glance

Components of the heroal soundproof door

Foam fill

Door leaf

Door frame

Sealants

Professional installation

The right soundproof door for every requirement

The soundproofing classes for soundproof doors according to DIN 4109

Testing soundproofing classes for soundproof doors

Current sound insualtion class 0

Meaning of sound insulation class

FAQ

Where can I buy heroal soundproof doors?

Are heroal soundproof doors made to measure?

What soundproofing is required for a front door?

Why is professional installation essential?

What do dB and R_w mean?

What value is decisive when buying a soundproof door?

Does a soundproof door also protect against low-frequency noise such as traffic or airplanes?

Can I also combine soundproof doors with Smart Home?

Let us inspire you

That's why heroal soundproof doors are the right choice

Find the right heroal specialist

Click here to search for a specialist partner

Thanks for your interest in heroal products

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Successful together: the benefits of working together

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