What you will learn

• The engineering behind every Sonic Series acoustic louvre, combining acoustically treated steel blade construction, mineral wool acoustic infill and aerodynamically configured blade geometry to reduce airborne noise while maintaining the airflow and weather protection required for mechanical and industrial ventilation.
• How to choose between the SL4-10, SL4-20, SL4-20C, SL4-30, SL4-30C, SL4-45 and SL4-60 based on your project’s acoustic, airflow and weather requirements, with blade depths from 100 mm to 600 mm and Rw ratings from 18 to 33.
• Where the chevron SL4-20C and SL4-30C models fit within the range, providing higher acoustic attenuation within relatively compact blade depths, with the SL4-20C achieving Rw 29 at 200 mm deep and the SL4-30C achieving Rw 31 at 300 mm deep.
• How airflow performance, pressure drop and weather resistance influence louvre selection, including Free Open Area from 21% to 35%, Coefficient of Discharge values from 0.50 to 0.87, Effective Aerodynamic Area from 0.14 m² to 0.29 m², and rain penetration classifications assessed using recognised engineering methodologies aligned with AS 4740 performance parameters.
• Real applications across HVAC, construction, defence, manufacturing and infrastructure, from mechanical plant intake and exhaust openings and rooftop equipment to generator enclosures, pump stations, substations and ventilated acoustic enclosures.
• What support from AcousTech looks like in practice, from site consultation and acoustic assessment through to pre-construction engineering, custom manufacture, installation support, commissioning and project compliance documentation, with supporting engineering documentation, CAD files, BIM objects and editable specification blocks available for project teams.