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Highway Noise Barrier

Environmental Barrier

  • A photo of a Highway Noise Barier

Description of Structure

The highway noise barrier fences are acoustic barriers in accordance with Clause 2504 of the specification for Highway Works. (1998 consolidation version) and Departmental Standard HA 66-95 – Environmental Barriers: Technical Requirements.

The fence has been laboratory tested in accordance with BS EN 1793:1998 (Parts 1-3) and has reached performance category B3 or A3.

The installation will be carried out by an installer registered to BS 9001:2000  Sector Scheme Document 2 C (The Design, Supply, Installation and Repair of Environmental Barriers (Structural))

Structural Type

The supporting posts of the noise barriers acoustic fencing are vertical cantilevers in structural steel sections embedded into mass concrete foundations of 1m depth x 0.45m diameter.

The infill panels are constructed using timber rails spanning horizontally between the supporting posts and vertical timber boards spanning continuously over the rails.

Absorptive panels will have a rockwool infill with a protective membrane over the face.

Foundation Type

The barrier will be founded in the existing ground on mass concrete foundations.

Articulation Arrangements

The posts act as vertical cantilevers and the panels act as simply supported one-way spanning slabs.

Proposed Arrangements for Inspection and Maintenance

Design life – 40 years, no major maintenance for 20 years. The environmental barrier should be inspected for maintenance during normal routine highway boundary inspections.

Materials and Finishes

Environmental Barrier:

The posts of the acoustic fencing are UB section steel Grade S275JR to BS EN 10025:1993, and will be galvanised to BS EN ISO 1461:1999, after fabrication. The posts will be embedded into isolated mass concrete foundations to a depth of 1m x 0.45 m diameter. The concrete mix for the foundations will be ST5 and there are no special requirements for resistance to ground sulphates for this site.

The timber components of the barrier will be treated using Tanalithe “E” (Green). The top will be finished with a once weathered capping. The reflective face of the fence will consist of 150mm*22mm vertical boards and 65mm cover strips, nailed through into the rails and gravel board using galvanised annular ring shank nails.

All timber to be preservative treated to BS 5589:1989.

Technical

*For Quixolid, 1100 mm / **Not available from stock in RAL 7016
Fence height
(m)
Panel Size WxH (mm) No. “V” Bars per panel Overall Length of Post Post Size (mm) No. Clips Per Post No. Clips Per Corner
1.2 1230 x 3005 2 1800 60 x 60 3 6
1.5 1530 x 3005 3 2100 60 x 60 4 8
1.8 1730 x 3005 3 2400 60 x 60 4 8
2.0 1930 x 3005 3 2700 60 x 60 4 8
2.4 2330 x 3005 4 3150 60 x 60 5 10
3.0 2930 x 2445 5 3900 60 x 60 6 12

Unbeatable Installation Guarantee

We guarantee our commercial fencing installation for 10 years because we are confident it will last.

Unlike many commercial fencing contractors who only provide the manufacturer’s warranty for materials, we also cover our installation.

You can trust that our work will hold up for a decade longer than anyone else’s.

Knight Fencing 10 Year Installation Guarantee Badge

Quick Quote for Commercial Fencing and Gates

If you’re looking for reliable, experienced commercial fencing contractors, Knight Fencing is the trusted supplier you’ve been looking for.

We offer a free site visit and quotation, ensuring you get the best fencing and gate solution for your commercial property.

Contact us today to discuss your project and get expert advice from our team.

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Knight Fencing
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Malcolm B.
In June 2025 excellent fitters Kevin and George from Knight installed these well made Iroko double gates.
Theresa B.
Had new gate furniture installed on my gates, very pleased with the service from start to finish. Thank you Jade for keeping me updated.
George N.
Great company! They offer really good advice and customer service, couldn’t fault them!
Karen J.
I bought 2 beautiful benches which were advertised at a much lower price than anywhere else on the web. They arrived promptly with a courier.
A couple of components were missing but were replaced with no fuss following one simple email to Jade Wallace, whose customer service was second to none.
Thoroughly impressed by this company and it’s EASY customer care.
flora L.
Great product - value for money and efficient friendly service - thanks so much
Alastair H.
Great job on my fencing and gates from Knight fencing. Five star service.
Ann J.
We are extremely pleased with the service and the results
Dee P.
Excellent service, good quality panels, and with free delivery worked out cheaper than Wickes!
Hannah H.
Just had my back garden fence replaced by 2 of the guys and I am so please it with it amazing job .
Kathy G.
Very happy with communication and work carried out. (Fencing & gates).
Nice guys, who left things tidy.

Trusted, Accredited, and Committed to Excellence

Association of Fencing-Industries
DuraPost Trained Installer
SMAS Worksafe preferred supplier
Postsaver Approved Installer
AJS Training
Constructionline Gold Member
CLD approved installer
Checkatrade.com members
CHAS accreditation advanced
Alexandra recommened installer

Trusted, Accredited, and Committed to Excellence

Association of Fencing-Industries
DuraPost Trained Installer
SMAS Worksafe preferred supplier
Postsaver Approved Installer
AJS Training
Constructionline Gold Member
CLD approved installer
Checkatrade.com members
CHAS accreditation advanced
Alexandra recommened installer

Helpful Guides

  • A Guide To Security Fencing
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Knight Fencing
Based on 37 reviews

Locations

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News, Tips and Advice

  • Knight Fencing Delivers Hands-On Workshop at West Sussex Alternative Provision CentreJune 23, 2025 - 1:00 pm
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Knight Fencing
Based on 37 reviews