Because the dome is self-supporting, the truss-free interior is naturally an open space—this is ideal for any commercial building since walls can be added or reconfigured without compromising the structure at all.
In the case of storm shelters, open square footage allows cities or schools to utilize the structure for alternate daily use. Safe shelters are funded with their primary use being a FEMA shelter and their secondary as a gym, auditorium, or convention center; the majority of the time, the structure can be used for local events, but in the event of a natural disaster, citizens have a safe place to shelter.
