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Pottorff > Louvers and Penthouses > Louvers and Penthouses > Formed Metal > SFD-635

Model SFD-635

Galvannealed Steel Louver
6" Deep - 35 Degree Drainable Blade

The SFD-635 formed steel drainable blade louver is designed to prevent water penetration in non wind-driven-rain applications by collecting water in frame and blade gutters and channeling it into downspouts and away from airflow paths. The SFD-635 is available in a wide array of painted finishes including custom color matching.

SFD-635 6" Deep - 35 Degree Drainable Blade

Standard Construction

Material: Galvannealed steel.

Frames: 6" deep x 20 ga. thick (152 x 1) channel.

Blades: 35o 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" x12" (305 x305)

Maximum Size:
Single Section: 48" x 96" (1219 x 2438)
Multiple Section: Unlimited


Free Area: 9.9 ft2 (0.92 m2)


Performance @ Beginning Point of Water Penetration

Free Area Velocity: 815 fpm (4.14 m/s)

Air Volume Delivered: 8044 cfm (3.80 m3/s)

Pressure Loss: 0.08 in. wg. (20 Pa)


Velocity @ 0.15 in. wg. Pressure Loss: 1050 fpm (5.33 m/s)

Design Load: 30 psf

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