The tornado shelter component manufacturers are companies that have specific product lines that meet the following standards and guidelines:

• FEMA P-361 “Safe Rooms for Tornadoes and Hurricanes, Guidance for Community and Residential Style Rooms”
• ICC/NSSA 500 Standard for the Design and Construction of Storm Shelters

All tornado shelter components (e.g., wall, roof, door, glazing and opening protection assemblies) should successfully pass the component specific testing requirements set forth in ICC/NSSA 500 Chapter 8, “Test Methods for Impact and Pressure Testing.”

Many of the components used for tornado shelters such as doors, must be certified and labeled, to show compliance. The testing requirements also specify residential or community uses and differentiate between hurricane or tornado events.
​
The NSSA Component Members are a valued part of our professional membership and can provide technical support for appropriate material selection when manufacturing or constructing a tornado shelter. The Component Members provide educational workshops as well as website based presentations for design professionals on the standards and guidelines.

Component Member Listings