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.
How to keep a roof safe during a tornado.
The most important things to remember are.
If you are in a long span building during a tornado stay away from windows.
If you are stuck outdoors when a thunderstorm hits crouch down.
If you are in a high rise building head to a small interior room on the lowest floor possible.
Although there is no completely safe place during a tornado some locations are much safer than others.
Get down get underground if possible.
Get in if you are outside get inside.
To reinforce roofs against tornadoes you ll need a structural reinforced concrete roof deck.
If you re in a.
If you re already inside get as far into the middle of the building as possible.
Try to put as many walls as you can between you and the outside.
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.
Falling and flying debris cause most deaths and injuries during a tornado.
Go to the basement or an inside room without windows on the lowest floor bathroom closet center hallway.
Cover your head and neck with your arms or a jacket if.
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.
Get under a sturdy table cover your head and neck with your arms and or with a heavy coat blankets or pillows.