ADA Louvre Systems’ acoustic louvres are designed to provide effective sound attenuation while maintaining the airflow required for ventilation of plant rooms, mechanical equipment and building services.
Our acoustic louvre range is supported by independent acoustic and aerodynamic testing, providing architects, engineers, acoustic consultants and contractors with verified performance data for product selection and specification.
Tested in accordance with AS 1191-2002 – Acoustics – Method for laboratory measurement of airborne sound transmission insulation of building elements, with performance rated in accordance with AS/NZS ISO 717-1:2004 – Acoustics – Rating of sound insulation in buildings and of building elements, Part 1: Airborne sound insulation.
Tested in accordance with AS 4740:2025 – Natural ventilators – Classification and performance, providing verified aerodynamic performance data for the tested configuration. AS 4740:2025 is the current standard and supersedes AS/NZS 4740:2000.
Acoustic louvres need to achieve two competing objectives: reducing the transmission of unwanted noise while allowing sufficient airflow for ventilation.
ADA acoustic louvres combine purpose-designed blade configurations with internal perforated liners and acoustic insulation to provide sound attenuation while maintaining airflow through the louvre. Different louvre depths and single- or double-blade configurations are available, allowing the system to be selected according to the acoustic and aerodynamic requirements of the project.
ADA acoustic louvres are suitable for applications where mechanical ventilation and noise control need to be considered together, including:
Our acoustic louvres can be manufactured in a range of materials and finishes to suit architectural, environmental and project requirements, including aluminium, Bluescope Galvabond®, 304 stainless steel and 316 stainless steel.
Depending on the selected material, finish options include mill finish, anodising and powder coating. Bird or vermin mesh, modular or ganged configurations and additional acoustic treatments are also available where required.
The appropriate acoustic louvre depends on the required sound attenuation, available opening size, airflow, face velocity, acceptable pressure drop and the acoustic characteristics of the equipment or noise source.
ADA offers single-blade acoustic louvres in 150 mm, 300 mm, 600 mm and 900 mm series depths, together with 600 mm and 900 mm double-blade configurations for applications requiring increased attenuation.
Our team can assist with selecting a configuration to suit your project requirements. Contact ADA Louvre Systems to discuss your application or request technical information and performance data.
Compact single-blade aluminium louvre (150 mm series depth) that balances ventilation with broadband noise reduction for tight façade openings and plant screens. Nominal free open area ~45% (varies with mesh and accessories). The ADA series is anchored to independent testing: aerodynamic performance to AS/NZS 4740:2025 (CFD, Class 1 on the tested configuration) and acoustic performance to AS 1191 / AS/NZS ISO 717-1 on a related 300 mm specimen. Materials are project-grade and site-durable with architectural finish options.
At a glance
Series depth: 150 mm (single-blade)
Free open area: ~45% nominal (accessories reduce FOA)
Construction: Frame and blades manufactured from 6063-T5 aluminium, Bluescope Galvabond®, 304 stainless steel, or 316 stainless steel; internal perforated liner; semi-rigid acoustic insulation (~32 kg/m³ density).
Finishes:
Aluminium: Mill finish, natural anodised, coloured anodised, or powder coated.
Bluescope Galvabond®: Mill finish or powder coated.
304 / 316 Stainless Steel: Mill finish
Options: Bird/vermin mesh, ganged modules, rear acoustic traps (on request)
Typical applications: Plant rooms, generator/chiller intakes & discharges, acoustic screens near sensitive receivers
Versatile single-blade louvre (300 mm series depth) with a strong balance of airflow and noise control. This configuration is the acoustic test baseline for the series (CSIRO: Rw 13 (C;Ctr 0;−1); STC 13). Aerodynamic performance aligns with AS/NZS 4740:2025 CFD, Class 1 on the tested arrangement.
At a glance
Series depth: 300 mm (single-blade)
Free open area: ~45% nominal (tested configuration)
Construction: Frame and blades manufactured from 6063-T5 aluminium, Bluescope Galvabond®, 304 stainless steel, or 316 stainless steel; internal perforated liner; semi-rigid acoustic insulation (~32 kg/m³ density).
Finishes:
Aluminium: Mill finish, natural anodised, coloured anodised, or powder coated.
Bluescope Galvabond®: Mill finish or powder coated.
304 / 316 Stainless Steel: Mill finish
Options: Bird/vermin mesh, modular/ganged panels, rear acoustic traps
Typical applications: General plant-room intakes/reliefs, AHU/FCU screens, data-centre plant, commercial rooftops
Notes: Published octave-band data is measured on this depth; use it as the reference for project comparisons across the range.
Higher-depth single-blade louvre (600 mm series depth) for increased attenuation while maintaining efficient airflow. Ideal where receivers are closer or criteria are tighter than typical commercial installs.
At a glance
Series depth: 600 mm (single-blade)
Free open area: ~45% nominal (varies with accessories)
Construction: Frame and blades manufactured from 6063-T5 aluminium, Bluescope Galvabond®, 304 stainless steel, or 316 stainless steel; internal perforated liner; semi-rigid acoustic insulation (~32 kg/m³ density).
Finishes:
Aluminium: Mill finish, natural anodised, coloured anodised, or powder coated.
Bluescope Galvabond®: Mill finish or powder coated.
304 / 316 Stainless Steel: Mill finish
Options: Bird/vermin mesh, ganged modules, rear traps
Typical applications: Hospitals/education plant decks, hospitality back-of-house, sites with nearby residential receivers
Deep single-blade louvre (900 mm series depth) delivering maximum attenuation in the single-blade family, suited to challenging sources (low-frequency fans, larger plant) or sensitive sites.
At a glance
Series depth: 900 mm (single-blade)
Free open area: ~45% nominal (accessory-dependent)
Construction:Frame and blades manufactured from 6063-T5 aluminium, Bluescope Galvabond®, 304 stainless steel, or 316 stainless steel; internal perforated liner; semi-rigid acoustic insulation (~32 kg/m³ density).
Finishes:
Aluminium: Mill finish, natural anodised, coloured anodised, or powder coated.
Bluescope Galvabond®: Mill finish or powder coated.
304 / 316 Stainless Steel: Mill finish
Options: Bird/vermin mesh, ganged modules, rear traps
Typical applications: Generators/chillers with stricter limits, cultural/health precincts, mixed-use rooftops
Notes: Highest single-blade attenuation; aerodynamic pressure drop increases with depth—select to suit duty/velocity.
Double-blade acoustic louvre (approx. 600 mm overall series depth) for a step-up in attenuation within a compact footprint. Designed where tonal content or nearby receivers demand more control than single-blade units.
At a glance
Series depth: ~600 mm (double-blade)
Free open area: ~45% nominal (before mesh/traps)
Construction: Frame and blades manufactured from 6063-T5 aluminium, Bluescope Galvabond®, 304 stainless steel, or 316 stainless steel; internal perforated liner; semi-rigid acoustic insulation (~32 kg/m³ density).
Finishes:
Aluminium: Mill finish, natural anodised, coloured anodised, or powder coated.
Bluescope Galvabond®: Mill finish or powder coated.
304 / 316 Stainless Steel: Mill finish
Options: Bird/vermin mesh, ganged modules, rear traps
Typical applications: Plant near property boundaries, councils with stringent façade noise limits, data-centre intakes/discharges
Notes: Expect higher attenuation and higher pressure drop than single-blade equivalents; confirm against fan duty.
Flagship double-blade model (approx. 900 mm overall series depth) offering maximum attenuation across the standard range for the most demanding acoustic briefs.
At a glance
Series depth: ~900 mm (double-blade)
Free open area: ~45% nominal (varies with accessories)
Construction: Frame and blades manufactured from 6063-T5 aluminium, Bluescope Galvabond®, 304 stainless steel, or 316 stainless steel; internal perforated liner; semi-rigid acoustic insulation (~32 kg/m³ density).
Finishes:
Aluminium: Mill finish, natural anodised, coloured anodised, or powder coated.
Bluescope Galvabond®: Mill finish or powder coated.
304 / 316 Stainless Steel: Mill finish
Options: Bird/vermin mesh, ganged modules, rear traps
Typical applications: Hospitals, performing-arts/cultural venues, premium mixed-use projects, critical infrastructure
Notes: Highest attenuation in the family; select with aerodynamic allowances (pressure-drop and velocity).