Woodfab acoustic barriers were originally invented in 1975 for
the Department of Transport in the UK. They have since been installed
in many major UK highways and have stood the test of time. Over
23 years ago a Buffalo acoustic barrier was erected on the M4 in
the UK (shown top right) . This structure is still there today,
delivering the same acoustic protection and has been totally maintenance
free throughout this period.
Tests carried out on sites have proven that the barriers have effectively
reduced noise by more than 50%.
This has arisen from developing exclusive designs, manufacturing
and testing. The Woodfab barrier is an engineered innovative structure
and is built to a much higher standard than mere fencing and uses
much more robust materials to meet the necessary strength, longevity
and acoustic requirements.
The standard barrier is available in heights of 1.5m, 2.0m, 2.5m
and 3.0m. Post centres can be either 2.4m or 3.0m.
Taller non standard barriers of 3.5m , 4.0m and upwards can be provided.
Contact us with your specific requirements so that we can advise
you of the best solution for your needs.
We manufacture various types of noise barrier which have been laboratory
tested for acoustic performance. All of our barriers carry a robust
acoustic design , have mechanical and structural integrity and are
Our ABSORPTIVE barriers are designed to insulate
against noise and absorb the noise that strikes them. Through laboratory
testing a performance coefficient can be assigned to a barrier,
expressed as a single number rating: A0 to A4, where A4 has a very
Our REFLECTIVE barriers, which also insulate against
noise but reflect the noise that strikes them, can be manufactured
single skinned or double skinned. Again, through laboratory testing,
a performance coefficient can be assigned to a barrier, expressed
as a single number rating: B0 to B3 where B3 has a very high coefficient.
The National Roads Authority document, Guidelines for the Treatment
of Noise and Vibration in National Road Schemes, sets a noise design
goal “performance standard” of 60L den
(free field) to be achieved, where feasible, on all new national
road schemes for 15 years after the road opens and sets a desired
service life of 30 years. For more information see www.nra.ie
Achievement of the performance specified in the European Standards
for Noise Barriers, I.S. EN 1793 and I.S. EN 1794 is now mandatory
on all new road projects. I.S EN 1793 covers the test methods to
determine acoustic performance and I.S. EN 1794 covers the assessment
methods to determine non acoustic performance ( structural, mechanical
and environmental aspects)
Woodfab barriers are manufactured to meet with these standards
and are treated with Tanalith E preservative in accordance with
I.S. 435-1:2005 which specifies a desired service life of 30 years.