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Metallic Noise Barrier Manufacturer & Installer in India
A metallic noise barrier is a steel or aluminium acoustic panel system used to block, absorb, or deflect sound from highways, railways, metro corridors, and industrial plants. A qualified metallic noise barrier manufacturer in India designs these systems to IRC SP 90:2010 noise abatement guidelines and CPCB ambient noise limits, typically delivering 10 to 25 dB(A) of insertion loss depending on height, density, and panel composition. This page is built for project engineers, EPC contractors, NHAI/metro consultants, facility managers, and procurement teams evaluating a noise barrier manufacturer for highway, railway, metro, or industrial noise control projects in India.
What Is a Metallic Noise Barrier?
A metallic noise barrier is an engineered acoustic wall, usually made from galvanized steel or aluminium panels filled with a mineral wool or rockwool absorptive core, installed along the line of sight between a noise source (traffic, trains, or machinery) and a noise-sensitive receiver (homes, hospitals, schools).
The barrier works on two physical principles at once: the metal skin reflects and blocks airborne sound, and the perforated inner face lets sound enter a cavity where the absorptive core converts sound energy into heat, reducing reflected noise back toward the source.
This dual-action design is why metallic systems outperform simple mass-only walls in high-traffic highway and railway corridors.
Application Area of Metallic Noise Barriers
| Industry | Industry Context | Primary Decision Driver |
|---|---|---|
| NHAI / State Highway Authorities | Highway noise barrier, road noise barrier projects | IRC SP 90:2010 compliance, L-DWL reduction target |
| Metro Rail Corporations | Metro noise barrier, metro corridor noise barrier | Elevated viaduct wayside noise, resident complaints |
| Railway Divisions | Railway noise barrier near residential stretches | Night-time Leq compliance near colonies |
| Factory / Plant EHS Teams | Industrial noise barrier manufacturer requirement | CPCB industrial zone limit (75/70 dB day/night) |
| EPC Contractors, Consultants | Outdoor sound barrier specification in tenders | Verified TDS, insertion loss test data |
Industry
NHAI / State Highway Authorities
Industry Context
Highway noise barrier, road noise barrier projects
Primary Decision Driver
IRC SP 90:2010 compliance, L-DWL reduction target
Industry
Metro Rail Corporations
Industry Context
Metro noise barrier, metro corridor noise barrier
Primary Decision Driver
Elevated viaduct wayside noise, resident complaints
Industry
Railway Divisions
Industry Context
Railway noise barrier near residential stretches
Primary Decision Driver
Night-time Leq compliance near colonies
Industry
Factory / Plant EHS Teams
Industry Context
Industrial noise barrier manufacturer requirement
Primary Decision Driver
CPCB industrial zone limit (75/70 dB day/night)
Industry
EPC Contractors, Consultants
Industry Context
Outdoor sound barrier specification in tenders
Primary Decision Driver
Verified TDS, insertion loss test data
Design Standard for Metallic Noise Barriers
IRC SP 90:2010 is the Indian Roads Congress standard providing
guidelines on designing noise abatement measures for urban roads,
covering source, path, and receiver-side noise control strategies
including barrier design. A credible noise barrier manufacturer in
India will reference this standard, along with CPCB ambient limits,
when proposing barrier height and material specification rather than
quoting a generic "universal" height.
Specifications
Benefits
Applications
Installation Process
Technical Data Sheet (TDS)
Specifications
| Specification | Detail |
|---|---|
| Panel material | Galvanized steel / aluminium, 0.5 to 1.2 mm skin |
| Core infill | Mineral wool / rockwool, 48 to 96 kg/mÂł density |
| Panel thickness | 50 mm to 150 mm |
| Standard height range | 1.5 m to 6 m (site-dependent) |
| Fire rating | Non-combustible core, Class A1 where specified |
| Finish | Pre-coated, powder-coated, or weather-primed |
| Design life | 25+ years outdoor exposure |
Benefits
Benefit
One-Line Detail
High insertion loss
Combines reflection and absorption for stronger dB(A) reduction
Weather resistance
Resists corrosion, UV, and monsoon exposure
Structural strength
Withstands wind load and minor impact on highway edges
Low maintenance
No repainting cycle required for 10+ years
Modular install
Panelised system speeds up site erection
Recyclable material
Steel and aluminium are fully recyclable at end of life
Customizable finish
Colour, perforation pattern, and cladding options available
Applications
Application
One-Line Use Case
Highways and expressways
Reduces drive-by traffic noise near residential stretches
Railway corridors
Controls wheel-rail and horn noise near colonies
Metro viaducts
Manages elevated wayside noise in dense urban areas
Industrial plants
Shields boundary walls from machinery and compressor noise
Data centres and DG yards
Contains generator and HVAC plant noise
Construction sites
Temporary acoustic enclosure around active zones
Residential boundary walls
Buffers noise from adjacent commercial or road frontage
Installation Process
Step
Action
1
Site noise survey
Baseline dB(A) measurement at sensitive receivers
2
Barrier height calculation
Line-of-sight modelling against target reduction
3
Foundation and post layout
RCC or steel post footing marked per span
4
Post erection
Vertical steel posts fixed to foundation
5
Panel slotting
Modular panels dropped into post channels
6
Joint sealing
Gaps sealed to prevent flanking noise leakage
7
Post-install verification
Insertion loss check against baseline survey
Technical Data Sheet (TDS)
Parameter
Value
Product Category
Metallic acoustic / sound barrier panel
Facing Material
Galvanized steel or aluminium sheet
Core Material
Mineral wool / rockwool
Sound Transmission Class (STC)
28 to 35 (configuration dependent)
Insertion Loss (Typical)
10 to 25 dB(A)
Panel Density
48 to 96 kg/mÂł (core)
Fire Performance
Non-combustible core material
Operating Temperature Range
-10°C to 70°C
Corrosion Protection
Hot-dip galvanized / powder coated
Expected Service Life
25+ years, outdoor rated
Frequently Asked Questions
1 What is the difference between a noise barrier and a sound barrier?
None functionally; both terms describe the same acoustic barrier
used for outdoor noise control.
2 How tall should a highway noise barrier be?
Height depends on line-of-sight calculation, not a fixed rule;
typically 3 to 6 metres.
3 Are metallic noise barriers better than polycarbonate ones?
Metallic barriers absorb and reflect better; polycarbonate barriers
preserve daylight and visibility.
4 How much does a metal noise barrier cost per square metre in India?
Cost varies by height, material, and site access; request a
project-specific quotation.
5 Do noise barriers actually reduce traffic noise near homes?
Yes, properly sized barriers typically cut perceived noise
by 10 to 15 dB(A).
6 Can noise barriers be installed on existing metro viaducts?
Yes, retrofit panel systems are designed for existing elevated
metro corridor structures.
7 How long do metallic sound barriers last outdoors?
Galvanized steel and aluminium systems typically last 25 years
with minimal maintenance.
8 Is there an Indian standard for noise barrier design?
Yes, IRC SP 90:2010 covers noise abatement design guidelines
for urban roads.
9 What CPCB noise limit applies near residential colonies?
55 dB(A) during the day and 45 dB(A) at night for
residential zones.
10 Can one barrier type work for both highway and industrial noise?
Often yes, but panel density and height are tuned differently
for each source.