Securall StormSafe Doors are constructed in accordance with the Federal Emergency Management Agency's (FEMA) guidelines and the International Code Council's (ICC-500) standard for tornado shelter doors. This design is based on extensive research on the cause and effects of windstorm damage to buildings. When combined with a shelter that also adheres to FEMA guidelines and ICC standards, a StormSafe Door will provide a high degree of occupant protection during extreme windstorms (tornados and hurricanes).