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Backed by the Science of Silence
Part of the Flexshield Group
Manufactured by Flexshield, AcousTech Sonic acoustic walls are built in Australia using durable materials and precision fabrication to ensure consistency and reliability across installations.Trusted by engineers and built for performance
Engineers specify Sonic acoustic walls for their scalable design, proven noise reduction, and adaptability to industrial and infrastructure environments.
Key Applications
- BESS and Data centres
- Construction site boundaries and temporary noise barriers
- Industrial site perimeter noise control
- Mining and tunnelling operations
- Power stations and substations
- Wastewater treatment facilities
- Transport corridors and logistics zones
- Pump station and generator enclosures
- Heavy manufacturing operations
- Large-scale infrastructure projects
Performance
Sonic acoustic walls use Sonic System acoustic modular panels tested in NATA-accredited laboratories to AS ISO 354 (sound absorption) and AS 1191-2002 with Rw determined to AS/NZS ISO 717.1.
| Performance | V50 panel | V100 panel |
|---|---|---|
| Sound reduction (Rw) | 31dB | 37dB |
| Sound absorption (NRC) | 1.00 | 1.10 |
| Peak absorption (αs) | 1.18 | 1.14 |
| Panel thickness | 50mm | 100mm |
| Fire resistance (FRL) | -/120/- | -/120/- |
Sound absorption coefficients (αs) by octave band
| Frequency (Hz) | V50 | V100 |
|---|---|---|
| 125 | 0.24 | 0.63 |
| 250 | 0.73 | 1.13 |
| 500 | 1.18 | 1.14 |
| 1000 | 1.10 | 1.11 |
| 2000 | 1.06 | 1.09 |
| 4000 | 1.01 | 1.00 |
Tested to AS ISO 354. Values taken from NATA-accredited test reports for each panel.
Structural performance – wind load
Sonic acoustic walls are load-tested and engineering-assessed in accordance with AS 1170.2. The maximum ultimate wind load pressure varies with the panel type and support spacing.
V50 panel
| Panel support centres | Maximum ultimate wind load pressure |
|---|---|
| 0.9m | 6.0 kPa |
| 1.2m | 6.0 kPa |
| 1.5m | 6.0 kPa |
| 1.8m | 4.3 kPa |
| 2.1m | 3.1 kPa |
| 2.4m | 2.4 kPa |
| 2.7m | 1.9 kPa |
Ultimate wind load pressures shown; not applicable to cyclonic wind regions.
V100 panel
| Panel support centres | Maximum ultimate wind load pressure |
|---|---|
| 4.0m | 2.58 kPa |
| 4.5m | 2.04 kPa |
| 5.0m | 1.65 kPa |
| 5.5m | 1.36 kPa |
| 6.0m+ | 1.15 kPa |
Certified loading pressure test reports available on request.
Construction
Sonic acoustic walls are engineered to withstand industrial conditions, weather and site movement. Core construction features:
- Solid external steel face (0.70mm) for barrier performance and visual continuity
- Perforated internal steel face (0.50mm, 38% open area) for sound absorption
- High-density Rockwool core Interlocking modular panel system with screwless assembly
- Fire resistance level FRL -/120/- (AS 1530.4-2014)
- Corrosion-resistant construction with epoxy primer and painted finish
- Available in 50mm (V50) or 100mm (V100) panel thicknesses
- Optional personnel access doors, vision panels and ventilation
Built for long-term use
Sonic acoustic walls suit temporary and permanent installations, with a modular format that allows future reconfiguration with minimal disruption.
- Weather-resistant finish
- Custom powder-coated colours available
- Low-maintenance
- Suitable for high-exposure industrial environments
Testing & Compliance
| Product | Testing and compliance |
|---|---|
| V50 | Sound absorption tested to AS ISO 354. Sound transmission loss tested to AS 1191-2002, with Rw determined to AS/NZS ISO 717.1. Structural performance load tested and engineering-assessed to AS 1170.2. Fire resistance tested to AS 1530.4-2014 (Sections 1, 2 and 3), achieving FRL -/120/-. Reaction to fire tested to AS 1530.1 and AS/NZS 1530.3. All testing is conducted by NATA-accredited laboratories. |
| V100 | Sound absorption tested to AS ISO 354. Sound transmission loss tested to AS 1191-2002, with Rw determined to AS/NZS ISO 717.1. Structural performance load tested and engineering-assessed to AS 1170.2. Fire resistance tested to AS 1530.4-2014, achieving FRL -/120/- for panel integrity when tested as an isolated element. Reaction to fire tested to AS 1530.1 and AS/NZS 1530.3. All testing is conducted by NATA-accredited laboratories. |
Full test certificates available upon request.
How To Specify
| Category | Specification |
|---|---|
| System | Sonic acoustic wall using Sonic System acoustic modular panel V50 or V100 |
| Construction | 50mm (V50) or 100mm (V100) acoustic panel with solid external steel face, perforated internal face (38% open area) and high-density Rockwool core |
| Finish | Corrosion-resistant steel with epoxy primer and painted finish. Custom colours available |
| Acoustic performance | V50: Rw 31dB, NRC 1.00
V100: Rw 37dB, NRC 1.10 |
| Fire rating | FRL -/120/- (AS 1530.4-2014) |
| Structural | Load tested and engineering-assessed to AS 1170.2. Support centres and wind load engineered to the site |
| Installation | Interlocking modular system, permanent or temporary |
| Options | Personnel access doors, vision panels, ventilation, frequency-specific acoustic tuning, corrosion and graffiti-resistant finishes |
Our technical team can support your project with:
- Site assessment and acoustic analysis
- Custom layout and system design
- Engineering documentation
- Fabrication and installation guidance
- Post-install support and adjustments
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