Ultra-thin panels for noise protection. A revolution in soundproofing from Swiss scientists

A new technology will allow private homeowners to effectively combat street noise without losing usable space

The Swiss research institute Empa, together with materials manufacturer de Cavis, has introduced an innovative solution for soundproofing private homes—ultra-thin acoustic panels made of mineral foam. The innovation is especially relevant for Russian homeowners living near busy roads or in dense urban areas.

Ultra-thin acoustic panels—a joint development of Empa and de Cavis.

4 times thinner, but no less effective

The main advantage of the new panels is their compactness. At just 5.5 centimeters thick, they effectively absorb typical traffic noise in the 500–1000 Hz range. For comparison: traditional materials such as mineral wool or melamine foam require a 20–25 cm layer to achieve the same effect.

This is critically important for private homeowners, where every centimeter of space counts. Now, it is possible to arrange high-quality soundproofing in narrow corridors, attic floors with low ceilings, or small utility rooms without “eating up” valuable space.

Ultra-thin acoustic panels—a joint development of Empa and de Cavis.

Perfect for the Russian climate

The panels are made of cement or gypsum foam, which makes them:

  • Frost- and moisture-resistant — suitable for soundproofing unheated rooms, verandas, terraces
  • Fire-safe — an important factor for wooden houses
  • Eco-friendly and recyclable — do not emit harmful substances and are safe for children and allergy sufferers
  • Easy to install — can be cut with standard tools and installed by hand
Ultra-thin acoustic panels—a joint development of Empa and de Cavis.

How it works

The secret of efficiency lies in the multilayer structure with pores of different sizes. As sound waves pass through the labyrinth of pores, they lose energy, as if passing through a much thicker material. At the same time, the panels remain lightweight and do not create unnecessary load on the house’s structures.

Real tests showed a noise reduction of 4 decibels

In a pilot project in Zurich, the installation of 72 panels (a total of 12 m²) in a residential courtyard reduced the noise level by 4 decibels—an improvement especially noticeable during car entry and exit. The material outperformed traditional mineral wool specifically at low frequencies—the most problematic for sound insulation (engine rumble, bass from music).

Ultra-thin acoustic panels—a joint development of Empa and de Cavis.

Aesthetics without compromise

Unlike traditional soundproofing materials that require decorative finishing, mineral panels can be used as the final coating. They look like ordinary plaster and can easily be painted in any color while retaining their acoustic properties.

When to expect them in Russia

The technology is currently undergoing production scaling in Europe. According to experts, the first deliveries to Russia may begin as early as 2026. Given the growing demand for quality soundproofing in the private housing sector and stricter noise control regulations, the innovation has every chance to quickly conquer the Russian market.

For private homeowners, this means finally solving the noise problem without sacrificing space or interior design—a real revolution in the world of acoustic materials.

Ultra-thin acoustic panels—a joint development of Empa and de Cavis.
Ultra-thin acoustic panels—a joint development of Empa and de Cavis.
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