Underground Storm Shelters Idabel
On May 3, 1999 an EF5 tornado struck Moore, OK that’d record wind speeds of over 300mph. After that 1999 tornado, we realized that not everybody in Oklahoma had the space to put in a septic tank shelter. People had very, very limited choices with respect to protecting their families from tornadoes. At that time, underground storm shelters in Idabel were not installed in half the houses they are now.
Immediately thereafter, the first generation of this in-garage, underground storm shelters was born. This allowed for the masses to put in a shelter underground, in their house for tornado protection. Homes throughout Idabel were installing these underground storm shelters to protect themselves.
This was a good thought for sheltering people and keeping them from the weather but it had its downfalls. It stuck up 4 to 5 inches off the garage floor, had poor ventilation, rusted out fast, and had steep, awkward ladders for entry and exit. Many of these underground storm shelters in Idabel weren’t installed correctly and have actually floated up from the ground due to buoyancy and ground water. We took note, and made history.
In 2003, the FlatSafe Tornado Shelter was invented. We engineered our underground storm shelters, to be installed in-garage to deal with the destructive forces connected with tornadoes that would give our Idabel clients peace of mind and provide them with the highest probability of survival in an EF5 tornado.
Through extensive research, we identified vacuum, air pressure, and debris as the most destructive forces connected with tornadoes.
With potential wind speeds of 300+mph in mind, we realized that vacuum is one of the most damaging forces which tornadoes create. It does not require much vacuum pressure, with regard to psi, to cause structural damage. To counter vacuum forces, FlatSafe made a lid system that permits 360o of venting for quick equalization of pressure inside the shelter. By promoting the pressure inside of the shield to quickly equalize with the outside pressure, the secured lid process is held firmly closed.
We understood that 300+mph winds can cause tremendous damage to anything it slams against so we sought to lower our exposed surface area as much as possible. The patented FlatSafe lid system only sticks up 1/4″, therefore there’s very little surface area affected by horizontal wind speeds.
Since FlatSafe Tornado Shelters are under ground, it is out of the way of horizontal winds and the debris thrown and circulated by it. So the only debris to worry about is falling debris. We understood that all debris falls at the same speed and just mass determines its impact. Our 1/4″ plate lid is larger than the shelter opening and is reinforced to absorb and withstand some falling debris that might land squarely on it. We made it to provide more than adequate ventilation (breathing) even after impact.
FlatSafe Underground Storm Shelters
The FlatSafe Tornado Shelter was engineered to meet all of the regulations and criteria which were available. It was also engineered with rust protection options to make sure that the shelter would last as long as the house and the homeowner. FlatSafe supplied the original single-lid design and was the first low-profile, in-garage shelter offered. The lid is 1/4″ thick steel plate with additional structural tubing to provide additional strength. The single-piece lid is larger than the framework of the saferoom opening and sits over the framework, not down inside the frame.
Our lid system is MUCH stronger than the normal 2-piece lid system provided by everybody else and provides more than adequate ventilation to the occupants. FlatSafe was the first to encase lands in ready-mix concrete to counteract buoyancy and floatation. The FlatSafe shelter design does not take away from a homeowner’s usable garage floor area.
FlatSafe below ground storm shelters permit easy entry and exit, provides a powerful system for leaving with debris on the lid, and leaves Idabel residence with the reassurance that they have a very high probability of surviving a direct hit from an EF5 tornado.
Read Real Testimonials From Tornado Survivors
Since 2003, FlatSafe has established itself as the innovator in the in-garage, low profile, below ground storm shelters industry. Many FlatSafe shelters have taken a direct hit from an EF5 tornado and our customers rave about the shelter performance and their choice to purchase. FlatSafe continues to push for new invention and continues to push for more stringent and thorough codes to protect the families in and around Idabel.