What is Echo Barrier? A plain-English guide for residents

You’ve probably seen them: green or blue padded panels with reflective strips, zip-tied to the metal fencing round a building site or a set of roadworks, often with “ECHO BARRIER” printed across the front. If the noise behind them still keeps you awake, it’s natural to wonder what they are and whether they’re doing anything at all.

This guide explains what Echo Barrier is, what its lab test results actually show, and how to judge whether the barrier next to your home is doing its job.

This site is supported by Hushtec, a New Zealand manufacturer of temporary acoustic barriers with a UK manufacturing site in Wakefield, West Yorkshire, where its Performance and Premium panels are made. Hushtec is a competitor of Echo Barrier. We’ve used Echo Barrier’s own published spec sheets and its UKAS-accredited lab test reports, and we’ve tried to be fair about strengths as well as limits.

In this article you’ll learn:

• What Echo Barrier is, who makes it and where
• What the “43 dB” and “100% absorption” claims actually mean
• What the H9’s independent lab tests show
• How to tell if the barrier near you is installed well
• What to ask the contractor for

What is Echo Barrier?

Echo Barrier is a brand of lightweight, rollable temporary acoustic panels that clip onto site fencing to reduce noise from construction, roadworks, rail works and events. The brand belongs to Echo Barrier Ltd, a company registered in England with its head office in Suffolk. The business started in 2010 and the barrier was the idea of acoustics expert Peter Wilson.

The panels are made in Slovakia. Trade records show Echo Barrier panels shipped by Echo Barrier s.r.o., based in Košice, with Slovakia given as the country of origin. So although the brand is British-registered and widely hired out by UK firms, the barriers themselves are manufactured in Slovakia.

Echo Barrier panels have been used on high-profile jobs, including Transport for London work such as the Earls Court Underground station project with Balfour Beatty, the World Trade Center site in New York and the Sydney suburban rail network. In the UK they are widely available to hire through site equipment firms, so you’ll often see them on short jobs as well as large projects.

What are Echo Barrier panels made of?

According to the manufacturer’s spec sheets, a typical panel has three layers:

• Front: waterproof PVC, usually green or blue
• Core: a lightweight, sound-absorbing composite
• Back: a waterproof, breathable membrane or mesh

The panels have reflective strips and hazard icons for night-time visibility, a security cable and an individual RFID tag to deter theft, and can be power-washed. The manufacturer says one person can fit a panel in around 30 seconds with its installation kits.

Echo Barrier models and published figures

Figures from Echo Barrier spec sheets published via UK distributors. The earlier H2 model is also still offered by some hire firms.

The H9 sheet lists fire testing to BS 7837, ASTM E84 and EN 13501-1:2018, water resistance to IPX6/IPX9 and cold testing to -40 °C. It does not state a fire classification, so if fire performance matters on a site (near escape routes or in a station, for example), ask for the classification report.

What do the H9’s lab tests show?

The H9 was tested at the University of Salford’s UKAS-accredited acoustics laboratory in January 2019, for both sound reduction and sound absorption.

Sound reduction (sound passing through the panel)

Tested to BS EN ISO 10140-2 and rated to BS EN ISO 717-1, the H9 achieved:

Rw (C;Ctr) = 16 (-1;-3) dB, with a measured mass of 2.0 kg per square metre.

Rw (weighted sound reduction index) is the standard single number for how much sound a panel stops passing through it, taking the whole frequency range into account. The Ctr of -3 means that for low-frequency noise such as diesel engines and traffic, the effective figure is about 13 dB.

Here’s how the result varied with frequency:

So the spec sheet’s “43 dB” is the result at 4000 Hz, a high-pitched sound. At the low and middle frequencies where most plant and engine noise sits, the H9 blocked between about 6 and 12 dB in the lab. That’s typical for a very light panel: lightness makes it quick to handle, but heavier materials block low-frequency sound better.

Sound absorption (sound soaked up by the face)

Tested to BS EN ISO 354 and rated to BS EN ISO 11654, the H9 achieved:

αw = 0.25 (L)(M), absorption Class E.

That single number hides something useful. The H9 is a very strong absorber between about 250 and 500 Hz, reaching its peak around 400 Hz, which is right where a lot of engine noise sits. Above 1000 Hz its absorption drops away to around 0.15. The “(L)(M)” after the rating flags exactly this: absorption at low and middle frequencies is much higher than the single number suggests. The spec sheet’s “100% absorption at certain frequencies” refers to that 250 to 500 Hz peak.

For more on what these ratings mean, see our Rw rating guide and the Learning Centre.

These tests date from January 2019. The H9 spec sheet notes a change to the membrane on barriers made after 2023, so ask the supplier whether more recent test data is available.

Why is the site still loud with Echo Barrier up?

Even a very good panel can only block sound that tries to go through it. On a real site, noise also goes:

• Over the top, especially if your window is higher than the barrier
• Around the ends of a run of panels
• Through gaps at joints or under the base

BS 5228-1, the UK code of practice for construction noise, uses a rough rule of thumb: a barrier that just hides the top of the machine from view gives around 5 dB of reduction, and one that completely hides it gives around 10 dB. To get close to that, the sound coming through the panel needs to be well below the sound coming over the top, which is where the panel’s Rw matters.

Pros and cons of Echo Barrier

Pros

• Very light (5.5 to 7.1 kg per panel; the H9 is 2.0 kg per square metre), so quick to fit and move around a changing site
• Strong absorption between about 250 and 500 Hz, which helps cut engine noise bouncing back off the barrier
• Easy to hire in the UK, with good visibility features and anti-theft tagging
• Widely used on transport and infrastructure projects

Cons

• The H9’s overall sound reduction is Rw 16 dB, and under 12 dB below 630 Hz, so on its own it’s limited against heavy, low-frequency plant close to homes
• Headline “43 dB” and “100%” figures are single-frequency results, which makes like-for-like comparison hard
• A fire classification isn’t shown on the spec sheets we found
• Like any fence-mounted panel, it’s limited to fence height (about 2 m), so it won’t screen upstairs windows from tall plant

Alternatives to Echo Barrier

Several suppliers sell temporary acoustic barriers in the UK, including Hushtec (which supports this site), Siderise, RVT Group and the BIGBEN Sound Blocker range. Published Rw ratings vary widely: for example, Hushtec’s Performance, Premium and Signature Series barriers are rated Rw 26, 32 and 38 dB, Siderise’s NRB Superflex Rw 22 dB and RVT’s fence-mounted SOUNDEX Quilt Rw 15 dB. Absorption varies just as much, from αw 1.0 (Class A) for Hushtec Performance and Premium down to αw 0.10 for the Siderise NRB Superflex, which is not classified and effectively reflective. Whatever the brand, compare Rw and αw rather than “up to” figures. Our comparison of five UK barrier suppliers and guide to Rw 26 dB barriers show how to judge whether a barrier is enough for a particular site.

Before you complain: checklist

• Can you see the noisy machine over or around the barrier from your window?
• Are there gaps at the joints or under the panels?
• Is the padded front facing the works?
• Is the barrier close to the noise, or far away on the boundary?
• Have you asked the site manager for the barrier’s Rw rating and the site’s agreed noise limits?
• Have you kept a dated record of when the noise is worst? Our guide to recording noise evidence can help.

If the barrier is badly installed, raise it with the site manager first. If nothing changes, contact your council’s Environmental Health team. Our complaint guide walks you through it.

This article is general guidance, not legal or engineering advice. Product details are taken from manufacturer documents, test reports and trade records available in November 2026 and may change; check with the supplier for current data.