Metal Noise Barrier ALPHAfon-MB

A quick and economical solution for sound absorption and noise insulation

General Details

The metal noise barrier ALPHAfon-MB is composed of a galvanized metal sheet at the external side and perforated metal sheet for the internal side.metal noise barrier design

The standard color in both sides is RAL 9002 but both sides can be painted in any RAL Color (by third parties) to match different project requirements.

The two ends of the metal barrier are properly formed (male-female), in order to achieve perfect sound sealing but also to improve its bending strength.

Internally, it is filled with sound-absorbing material, mineral wool, hydrophobe, with appropriate density, cover with thin glasswool cloth.

  • Noise protection from traffic noise (cars, trains, noisy machines, chillers, cooling towers etc)
  • Easy to install
  • Durability to external environmental conditions
  • High sound absorption (from one side)
  • Can be painted in any color

The metal barriers ALPHAfon-MB can be installed sliding on iron profile, from special formed double T (HEA), which are appropriatly fixed to the basement.The metal barriers can also be installed vertically with the appropriate support at the top and the bottom.

In the case of road noise barrier, it is recommended to build an appropriate concrete wall at the bottom of the barrier. The height and the length of the metal barrier can be determined by our company using a special PC program, in order to estimate the noise reduction and decide on the best technical-economical solution.


The metal noise barriers ALPHAfon-MB compose a quick and economical solution for the problems of sound absorption in relation with noise insulation and mechanical strength for internal and external uses like:

  • swimming pools
  • gymnasiums
  • disco – pubs
  • music schools
  • industrial plants
  • noise barriers for streets to protect schools, hospitals, houses

The product can also be used in noise control of machines like: air-conditioners, cooling towers, chillers etc.

Technical data

metal noise barrier design

The metal noise barrier has good resistance during the time and against the ultraviolet radiation. It is hydrophobe, consists from incombustible materials and easy to replace in case of an accidental reason. Also it could be painted at any color.

SOUND REDUCTION INDEX Rw (According ISO 140, ISO 717.1)

  • Rw = 33.6 dB (50mm thickness)
  • Rw = 35 dB (100mm thickness)

Weighted Sound Absorption Coefficient αw=1
Sound Absorption Coefficient Class: A

(According to ISO 11654:1997)


Application photos

Some applications of the Metal Noise Barriers ALPHAfon-MB are shown below:

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