Tough-as-Nails Interior Design Building an interior storm shelter is easiest during new construction. No matter what type of construction materials are used, the unit must be bolted to a concrete slab. The cost to build an interior storm shelter is $6,000 to $15,000, depending on the size, location, and door style
Certain states in high-risk areas will provide funding support for the construction of individual and community tornado shelters. Mississippi, for example, reimburses up to 75% of the cost of constructing a tornado shelter that’s built to FEMA standards. The funding is partially supported by FEMA’s Hazard Mitigation Program Read more: http://www.houselogic.com/photos/tornadoes-severe-storms/tornado-storm-shelters-safe-room-protection-when-it-counts/#ixzz1cUO08bEL
Constructing a safe room.Safe rooms built below ground level provide the greatest protection, but a safe room built in a first-floor interior room also can provide the necessary protection. Below-ground safe rooms must be designed to avoid accumulating water during the heavy rains that often accompany severe windstorms.