Transparent noise barriers make an effective yet aesthetic contribution towards reducing sound emission.

The reflection of sound from the CLEARSoundBlok® barrier considerably reduces the noise level in the area behind the wall. As a transparent material, CLEARSoundBlok® offers a clear view from both sides.

In short, CLEARSoundBlok® with its transparency, light weight and formability, fits harmoniously into our environment.


ClearSoundblok® panels are suitable for a whole range of locations including along motorways and highways, airports, railways and sports venues. They are also ideal for use where relief from continuous solid barriers is required. Please see below some of the key advantages.

freedom of Design – The simple and inexpensive mode of fabrication offered by the sheets, such as thermoforming, cutting to size and drilling or surface treatment, gives you practically unlimited creative scope.

Safety – Transparent noise barriers help to increase road safety. The light-transmitting sheets cast no harsh shadows onto the roadway. Drivers stay in touch with the environment and have a clear view of their surroundings. Noise barriers made of CLEARSoundBlok® prove this day in, day out.

Bird Protection – Although highly transparent, our CLEARSoundBlok® barriers can have bird stripes or pictures installed which are easily recognised by birds.

Optical Variety – CLEARSoundBlok® is offered in seven standard colours. Special colours can be provided on request.

Graffiti – Spray paints can be removed from CLEARSoundBlok®. We recommend softening the graffiti with a water-soluble paint thinner and then washing it off with plenty of water.


  • Class = A0,B4
  • Acoustic Performance = DLʀ 32dB
  • Design Life of barrier = 30 years
  • Design Life of Steel Posts = 60 + Years
  • Barrier Heights = From 0.3m – 10m (Bespoke heights available on request)
  • Bay Widths = From 1.0m – 3.0m (Bespoke Heights available on request)
  • Weight = 23.5 kg/m2
  • Material = PMMA
  • Finish = Clear or Coloured Screens, Aluminium frame powder coated to any RAL colour

Foundation types

Gramms CLEARSoundBlok® 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) Timber or 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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Speak to one of our experts to obtain a free quote on

08442 259002 / 01323 872243

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