Standard Construction
Material: Galvannealed steel.
Frames: 4" deep x 20 ga. thick (102 x 1) channel.
Blades: 45o x 20 ga. (1) thick drainable style.
Screen: 1/2" x 0.063" (12.7 x 1.6) expanded and flattened aluminum.
Mullion: Visible.
Minimum Size: 12" x 12" (305 x 305)
Maximum Size:
Single Section: 48" x 96" (1219 x 2438)
Multiple Section: Unlimited
Ratings
Free Area: 8.5 ft2 (0.79 m2)
Performance @ Beginning Point of Water Penetration
Free Area Velocity: 715 fpm (3.63 m/s)
Air Volume Delivered: 6092 cfm (2.88 m3/s)
Pressure Loss: 0.11 in. wg. (27 Pa)
Velocity @ 0.15 in. wg. Pressure Loss: 850 fpm (4.32 m/s)
Design Load: 30 psf