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On August 2, 2013 our safe room was tested and passed the strict requirements from the National Wind Institute. To do this they secured our safe room to a structure and used a powerful air cannon to shoot 2’x4″ lumber, testing the shelter for weaknesses.

The FEMA 320 & ICC-500 Tornado Protocol 4 was passed. The series of tests included 6 separate firings of 2″ x 4″ at our shelter.

These impacts relate to a 250 mph ground speed tornado, which on the EF tornado damage scale is an EF5 tornado. We're awfully proud of these results.
Vulcan Storm Shelters
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Joseph Dannemiller speaks at Texas Tech University about the safety and effectiveness of aboveground shelters