Strengthening EXISTING Buildings To SURVIVE F5 Tornadoes!

August 5, 2016

Highlights of this article: Using our ideas, a reinforced building will survive a 2 1/2 MILE WIDE, 300 MPH, F5 TORNADO!  This will reduce the path of F5 destruction to ZERO! Cost of materials to protect a house against a F3 tornado will be a few $100. To protect against a F5 will cost a few $1000 for materials!
More: http://ideas4humanity.com/tornadoes  m

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