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Pottorff > Louvers and Penthouses > Louvers and Architectural > FEMA/ICC-500 Rated > XCD-545

Model XCD-545

Aluminum Grille
5-1/2" Deep - Horizontal Blade

The XCD-545 aluminum grille is designed in accordance with ICC 500 (2020), FEMA P-361 (2015) and FEMA P-320 (2014) guidelines for storm shelters and safe rooms. It offers exceptional protection against wind pressures and debris impacts produced by tornadoes and hurricanes. The XCD-545 is a UL Classified Windstorm Rated Assembly with a design pressure of 300 psf and has been impact-tested using 15-lb 2 x 4 timbers launched at 100 mph.

XCD-545 5-1/2" Deep - Horizontal Blade

Standard Construction

Material: Aluminum.

Frames: 5-1/2" deep x 0.25" thick (140 x 6).

Blades: 0.25" (6) horizontal chevron style.

Screen: 5/8" x 0.050" (15.9 x 1.3) expanded and flattened aluminum.

Mullion: Visible.

Factory Finish: Mill

Minimum Size: 12" x 12" (305 x 305)

Maximum Size:
Single Section:
 48" x 96" (1219 x 2438) 
Multiple Section: 
Unlimited width x single section high
Single section wide x unlimited height


Free Area: 6.1 ft2 (0.57 m2)


Performance @ Beginning Point of Water Penetration

Free Area Velocity: 1250 fpm (6.35 m/s)

Air Volume Delivered: 7,575 cfm (3.58 m3/s)

Pressure Loss: 0.28 in. wg. (70 Pa)


Design Pressure: 300 psf (14.4 kPa)

AMCA Certified for Water Penetration, Air Performance and Wind-Driven Rain

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