2″ High Performance Drainable; 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; rated for an air performance and water penetration maintained effectiveness rate tested in accordance with AMCA 500-L.
WATER PENETRATION PERFORMANCE Free Area Velocity at beginning point of water penetration is 525 fpm (2.66 m/s) Air Volume flow rate at beginning point of water penetration – 48in (1220mm) x 48in (1220mm) unit -4232 cfm(2.0 m3/s) Pressure drop at beginning point of water penetration – 11 paAIRFLOW PERFORMANCE
Free Area: 51% , based on a test sample of 48in (1220mm) x 48in (1220mm) Airflow Classification—Class 2