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)