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Windstorm Solutions

These solutions are designed to withstand severe weather associated with tornadoes and hurricanes.


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Windstorm solutions meet the most demanding needs for tornado or hurricane applications. Von Duprin offers multiple products intended to meet the unique building code and testing requirements for both applications while continuing to provide the exceptional performance expected by our customer. Von Duprin windstorm specific hardware helps to secure the building and protect its occupants from wind and projectile debris.

Tornado-resistant openings are designed to protect occupants during short periods of high-velocity winds up to 250 mph with dangerous projectile debris. FEMA guidelines require testing intended to simulate conditions present during EF5 tornadoes including high pressure loads and dangerous wind born debris. 

Hurricane-resistant openings are designed to withstand storm conditions for longer periods of time while maintaining structural and functional integrity. The primary functions of a hurricane-resistant opening are to prevent debris and wind from penetrating the assembly and to continue functioning after the storm. Hurricane devices can be categorized as approved for “Wind Only” (HW) or “Wind and Impact” (HH). Both types of approval require static pressure testing while “Wind and Impact” add cyclical pressure and missile impact tests.


  Severe Weather


  • Meets Life/Safety codes for tornado applications
  • Reinforced brackets and latches are designed to withstand 250 mph winds
  • Thru-bolted attachment points and reinforced vertical rods
  • The WS 9827/9927 and WS 9857/9957 two- and three-point exit devices incorporate reinforced components to help meet these extreme conditions. Extended latch guards for WS98/9927 and WS98/9957 are available to comply with required accessibility standards per ADA or A117.1. 



  • Most Von Duprin exit devices, when paired with the appropriate Steelcraft and Republic door and frame assemblies, are approved for certain hurricane applications 
  • Meets Life/Safety codes for hurricane applications
  • Maintains structural and functional integrity during and after hurricanes
  • “Wind Only” (HW) and “Wind and Impact” (HH) approved products to ensure the right product for the right application 

Tornado (WS)

  • Listed Panic hardware UL 305
  • Fire-rated version listed UL 10C
  • To receive this rating, devices need to meet FEMA 320/361 to FEMA P-320/P-361 guidelines.
  • Tornado Applications - ICC 500, FEMA P-361, FEMA P-320


WS 9827/9927

  • Door size: single door 4’0” x 8’0”, pair of doors 8'0" x 8'0" hollow metal
  • Fire-rated version listed 90-minute UL10C for pairs (swinging same direction)
  • Also meets hurricane requirements - ASTM E330, ASTM E1886, ASTM E1996, TAS 201, TAS 202, TAS 203


WS 9857/9957

  • Door size: 4’0” x 8’0” (1219mm x 2438mm) hollow metal
  • Fire-rated version listed 3 hours UL10C for a single door


Hurricane (HH and HW)

  • Listed Panic hardware UL 305
  • Fire-rated version listed UL 10C, where applicable
  • Consult with Allegion specification writers for specific state requirements


Wind and Impact (HH)

  • Wind and Impact (HH) product tested in accordance with Florida Building Code (FBC) protocols TAS201, TAS202, TAS203 (for Florida High Velocity Hurricane Zone) and ASTM E330, ASTM E1886, ASTM E1996
  • Some configurations within these device series meet the wind and impact requirements: 33A/35A Series, 88 Series, 98/99 Series, WS98/9927, XP98/99 Rim, 2670 Series Guard-X


Wind-Only (HW)

  • Wind-Only (HW) product tested in accordance with ASTM E330
  • Some configurations within these device series meet the wind and impact requirements: All HH models and 22 Series, 55 Series, 94/95 Series INPACTTM
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Options & Accessories

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Did You Know?

Von Duprin has hundreds of possible configurations for any type of opening, giving you flexible and modular options.

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