Gramm Barrier Systems ALUSoundBlok® noise barrier panels are manufactured from high density mineral wool which has extremely effective deadening properties. The mineral wool is then encased in an aluminium panel to produce a light weight sound absorbing barrier.
Gramm Barriers supply and install their ALUSoundBlok® noise barrier system extensively throughout Europe and the UK within urban areas, roads, rail and on various structures.
Gramm Barrier systems ALUSoundBlok® barrier are constructed off site under strict quality controls providing the highest level of construction which conforms to all the latest standards required for all sectors.


Each panel is made of corrosion- resistant aluminium steel, and perforated for
acoustical absorption. The size and pattern of the perforations are designed to protect and maintain the sound-absorptive capability of the acoustic fill inside the panels.

The reverse side of the panel facing away from the noise source, is made of nonperforated aluminium steel which is also corrosion-resistant. ALUSoundBlok® panels cut the build-up of reverberant sound between parallel barriers, resulting in noise reduction higher than that provided by the hard-surface alternates.

A unique design feature of the ALUSoundBlok® barrier construction is that individual panels can be removed and replaced. Panels are not bolted, welded, or otherwise permanently fastened to each other or to the support posts (Top security fixing added if required). Should replacement be called for as a result of structural damage, no more than three workmen using ordinary hand tools will be able to do the job. The light weight (30.0kg/m2) of the noise shield panels also make them the prime choice for barrier construction atop existing bridges, overpasses, or other elevated transit structures which cannot support heavier alternative products.


  • Class = A4,B3
  • Acoustic Performance = Dlα 13dB, DLʀ 30dB
  • Design Life of barrier = 30 years
  • Design Life of Steel Posts = 60 + Years
  • Barrier Heights = From 0.5m – 10m (Bespoke heights available on request)
  • Bay Widths = From 1.0m – 6.0m
  • Weight = 30.0kg/m2
  • Material = Aluminium
  • Finish = Powder Coated or Galvanised.

Foundation types

Gramms ALUSoundBlok® noise barrier system can be either set into concrete foundations or bolted down to individual concrete pads or a continuous concrete strip/pad.

Fixing methods

a) Galvanised steel or PPC posts with baseplates can be fixed to concrete surfaces using chemfix resin anchors or cast in cradles.
b) Steel posts can be set into augered or bucket dug concrete foundations.

Why Choose Gramm Barrier Systems?

Gramm Barrier Systems are one of the only noise barrier specialist in the country give a 30 year guarantee on all our Acoustic Fencing, Acoustic Barriers & Noise Barriers. We also confirm that the barriers are designed to be maintenance free for the full 30 years.

Some of our noise barrier range is fully CE Marked and compliant for use on Highways England schemes under CPR 2013. Also schemes using Sector Scheme 2C, for the supply and installation of Environmental Barriers

All ours materials and installations are to such a high standard we are the only noise barrier specialists to have all our works backed and insured by the government.

Gramm Barriers Noise Barrier systems give the highest level of sound reduction on the market which is why our product’s are specified on many major road and rail schemes.

Gramm Barrier Systems Ltd are fully committed to the highest level of customer service, professionalism and health & safety for every installation. Utilising quality materials in manufacturing, the highest level of expertise, Gramm aim to maintain a quality product that is secure and reliable.

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08442 259002 / 01323 872243

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