Performance tested to AS/NZS 4740:2000 Louvreclad Varsity Series® Single Stage roll-formed colour-coated steel louvre achieves Class D, 75% effective rain defence, Class 2 for aerodynamics and 53% free open area. fabricated with precision sheet metal construction, the Varsity Series provides a versatile ventilation and screening solution for mechanical ventialtion and louvred screening where maximum airflow and low-pressure drops are critical to the design.