4″ Deep Vertical Storm Resistant Louver; extruded aluminum construction; frame with channel profile; corner joints mitered and mechanically fastened, with continuous recessed caulking channel each side; intermediate mullions matching frame; gutters to drain rain water to jamb and mullion downspouts; Maintains Class A (99%) effectiveness rating when tested for wind driven rain in accordance with AMCA 500-L.
WIND DRIVEN RAIN PERFORMANCE
Maintains Class A (99%) rating with 29mph wind velocity @ 3in/hr rainfall rate Max. intake core velocity – 480 FPM (2.5 m/s) Intake pressure drop at max. intake core velocity – 85 pa
Discharge loss Coefficient (Intake and Exhaust) – Cd= 0.21 Discharge loss coefficient Classification – Class 3