TW-645 / HW-645

FIXED ALUMINUM LOUVERS STORMPROOF

STANDARD CONSTRUCTION
FRAME	EXTRUDED 6063-T6 ALUMINUM, 0.125" (3.2 MM) THICK
BLADES	EXTRUDED 6063-T6 ALUMINUM, 0.125" (3.2 MM) THICK
BLADE ANGLE	50°
BLADE SPACING	±6" (152.4 MM)
BLADE FASTENING	FASTENED TO FRAME WITH SCREWS
BIRD SCREEN	GALVANIZED 1/2" X 1/2" X 0.047" (12.7 MM X 12.7 MM X 1.2 MM)
FINISH	MILL
SINGLE SECTION	MIN. 12" (305 MM) X 16" (406 MM) MAX. 60" (1 524 MM) X 234" (5 944 MM)
MULTIPLE SECTIONS	VARIOUS CONFIGURATIONS AVAILABLE

PERFORMANCE: 48" X 48" SECTION
FREE AREA	6.86 FT² (0.637 M²)
PERCENTAGE OF FREE AREA	43%
BEGINNING POINT OF WATER PENETRATION	836 FT/MIN (4.25 M/S)
PRESSURE DROP AT BEGINNING POINT OF WATER PENETRATION	0.03" W.G. (7.5 PA)