Demystifying Storm Shelters

Storm Shelter Closures Requirements

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How much wind does your area need to withstand?

ICC500 250mph zone

 

Wind zones are areas of the United States that get (on average) different maximum speed winds. The higher the winds, the higher the chance of a tornado or hurricane and the more damage it can do. This does not mean, however, that the surrounding areas are not of concern. Even in the 160 mph zone, tornadoes can develop and cause devastating damage to the area. 160 mph can still tear off roofs and turn over cars. These areas are generally less prepared for a storm of this magnitude, since they are less likely. When you are under prepared it can in turn have a greater impact on the people and the possessions in that area.

 


 

Tornado White

 

TORNADO ALLEY

It is required for an area with an increased risk of tornadoes or any state or locality that has adopted IBC 2015 or newer to have a storm shelter meeting the FEMA-361 requirements for all K-12 schools with 50 or more occupants, 911 call stations, police stations, fire, rescue and ambulance stations and more.

 

 

 

 

 

 

Hurricane White

 

HURRICANE VS. TORNADOES

Pressure equalizes more during a hurricane while tornadoes come on more instantly. Storm shelters for hurricanes require you to build for duration more than intensity. Generally, tornadoes are quicker with high winds, spewing projectiles at high speeds.

 

 

 

 

 

 

Schools White

 

STORM SHELTERS

An inside area within a building, or a separate building altogether, which is created to protect occupants from tornadoes or hurricanes. Some of the most common areas to be converted are gymnasiums, classrooms and cafeterias.