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.
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.
The most important things to remember are.
If you are stuck outdoors when a thunderstorm hits crouch down.
Minimize your contact with the ground by keeping your feet and knees together head tucked and hands over your ears.
If you are in a high rise building head to a small interior room on the lowest floor possible.
Get in if you are outside get inside.
Go to the basement or an inside room without windows on the lowest floor bathroom closet center hallway.
If you are in a long span building during a tornado stay away from windows.
If you re in a.
Although there is no completely safe place during a tornado some locations are much safer than others.
Try to put as many walls as you can between you and the outside.
Get under a sturdy table cover your head and neck with your arms and or with a heavy coat blankets or pillows.
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.
Get down get underground if possible.
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.