Featuring AMCA seal for water penetration and air performance, 5.5 in. deep Model AFL-501 protects exterior wall penetrations on FEMA 361 or 320 compliant storm shelters or safe rooms. Inverted V style blades lend to high free area, water penetration resistance, and minimal airflow resistance while maximizing protection against wind loads (up to ±300 PSF) and wind-borne debris. UL-Classified wind-storm rated assembly passes ICC 500 debris impact standard of 15 lb, 2 x 4 traveling at 100 mph.
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