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The old scale lists an F5 tornado as wind speeds of 261–318 mph (420–512 km/h), while the new scale lists an EF5 as a tornado with winds above 200 mph (322 km/h), found to be sufficient to cause the damage previously ascribed to the F5 range of wind speeds.
This is compounded by the wind entering the building allowing the building interior to pressurize, lifting the underside of the roof panels, resulting in the destruction of the building. One example of pan roof systems can be found in this document from Structall Building Systems Archived 2016-03-04 at the Wayback Machine .
Tornado damage to a house in Oklahoma County, Oklahoma, hit during the Tornado outbreak of May 10–13, 2010. Tornado intensity is the measure of wind speeds and potential risk produced by a tornado.
After rigorous wind testing, the Insurance Institute for Business & Home Safety is recommending that homeowners make sure to close all interior doors, as well as all windows and exterior doors.
From these wind speed numbers, qualitative descriptions of damage were made for each category of the Fujita scale, and then these descriptions were used to classify tornadoes. [ 9 ] At the time Fujita derived the scale, little information was available on damage caused by wind, so the original scale presented little more than educated guesses ...
Flood damage coverage is not typically included in homeowners insurance policies, Allstate states, but if your roof is damaged due to wind or hail and rainwater gets into your home, your ...
A unique feature of the International Fujita scale compared to the Fujita or Enhanced Fujita scale is a new damage indicator based on measured wind speeds. For the IF scale , only wind speeds measured at or below 10 metres (11 yd) can be used to determine a rating.
The 2010 edition of the Florida Building Code introduced significant changes to wind load design, in particular the presentation of the wind speed maps. [ 4 ] The Miami-Dade and Broward County norms, are both included in the High-Velocity Hurricane Zones (HVHZ) and contain more stringent requirements. [ 4 ]