Most such buildings hit by tornados cannot withstand the enormous pressure.
How to keep a roof safe during a tornado.
If you are stuck outdoors when a thunderstorm hits crouch down.
Try to put as many walls as you can between you and the outside.
Cover your head and neck with your arms or a jacket if.
If you are in a long span building during a tornado stay away from windows.
Masonry chimneys that extend more than six feet above the roof or have a width of 40 inches or more should have continuous vertical reinforcing steel placed in the corners to provide greater resistance to wind loads.
Although there is no completely safe place during a tornado some locations are much safer than others.
Go to the basement or an inside room without windows on the lowest floor bathroom closet center hallway.
A long span building such as a shopping mall theater or gymnasium is especially dangerous because the roof structure is usually supported solely by the outside walls.
If you cannot find a place to go inside crouch for protection next to a strong structure or lie flat in a ditch or other low lying area.
If you re already inside get as far into the middle of the building as possible.
Get down get underground if possible.
If you re in a.
Get in if you are outside get inside.
The most important things to remember are.
Head to a pre designated safe area like a safe room storm cellar or a windowless interior room.
To reinforce roofs against tornadoes you ll need a structural reinforced concrete roof deck.
Falling and flying debris cause most deaths and injuries during a tornado.