Noise barrier system Liadur

The Liadur noise barriers are proven in many places around the world. The barriers have been proving to be the effective anti-noise system at busy traffic areas, noisy operations of industrial plants and other similar situations for over 30 years. The Liadur noise barrier system not only allows high acoustic efficiency, but due to its structural design and easy installation it requires a minimal maintenance and it has a wide selection of architectural designs.

Main advantages

Long life span
High level of sound insulation
Optional level of sound absorption
Heat resistance of concrete sections
Wide selection of architectural designs
Read more about advantages »

Acoustic parameters of the Liadur noise barriers:

In terms of sound insulation the panels are classified as highly sound proof and in terms of absorption the panels are classified in the category of “high absorptive barriers”. The value of sound absorption depends on the varying thickness and shape of the absorption layer’s surface.

1. Liadur panels - low wave:
- a. sound insulation DLR > 45,0 dB, cat. B3
- b. sound absorption DLα > 8 dB, cat. A3
2. Liadur panels - high wave:
- a. sound insulation DLR > 45,0 dB, cat. B3
- b. sound absorption DLα > 11 dB, cat. A4
3. Liadur panels - flat surface:
- a. sound insulation DLR > 45,0 dB, cat. B3
- b. sound absorption DLα = 4 - 8 dB (depending on thickness of abs. layer), cat. A2
4. Liadur panels - extra high wave:
- a. sound insulation DLR > 45,0 dB, cat. B4
- b. sound absorption DLα > 16 dB, cat. A5