How to ensure sound insulation with Manusa automatic doors

Sound insulation is an increasingly valued technical requirement in buildings where privacy, comfort and control of ambient noise are key factors. In this context, automatic doors not only provide accessibility and energy efficiency, but can also be an effective barrier against sound transmission. 

Manusa automatic doors are designed to minimise the passage of noise from outside without compromising functionality or architectural design.

Keys to achieving effective sound insulation

Below, we analyse the main factors to consider to achieve efficient noise control and ensure indoor comfort.

• Suitable materials

The acoustic performance of a door depends largely on the mass, rigidity and absorption of the materials it is made of. To ensure good noise insulation, various materials can be used, including acoustic laminated glass and multi-layer structures. These materials reduce vibrations and filter medium and high sound frequencies.

• Airtight seal

Sound travels through the air, so any gaps or misalignments around the perimeter of the door can compromise its effectiveness. This is why a poorly sealed automatic door will not be able to insulate the building's acoustics properly.

Some automatic doors have sensors and closing control mechanisms that ensure the door is completely closed, leaving no gaps and thus reducing the risk of sound leakage.

•   Types of opening

Although automatic doors generally help to control noise, some models are capable of ensuring acoustic insulation in busier spaces. In this sense, revolving doors are a good solution that also provides accessibility for people. Thanks to their circular design, they maintain a constant separation from the outside environment, even with a continuous people flow. This geometric shape prevents direct full opening, which reduces noise entry. 

• Installation and technical maintenance

Correct installation is critical, as a poorly installed high-quality door can result in acoustic bridges or leaks. It is therefore essential to take the following factors into account:

•  The door must be precisely integrated into the façade or enclosure. 
• The weatherstripping, guides and frames must be perfectly aligned.

Another essential factor in ensuring proper functioning is regular technical maintenance.

Sound insulation does not depend solely on the thickness of the material or the type of door, but rather on a comprehensive system that combines materials engineering, structural design, automation, and installation quality. Manusa's solutions offer a technical response to control sound transmission without compromising accessibility or aesthetics.

In environments where acoustic comfort makes all the difference – such as workspaces, shopping centres, restaurants, or hotels – relying on a highly efficient automated solution means opting for the perfect balance between technology, functionality, and well-being.