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Posted: 5/24/2011 12:29:41 PM EDT
[#1]
Probably have to be round/dome like...Strength of a radius and lower wind resistance.
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Posted: 5/24/2011 12:30:53 PM EDT
[#2]
Quoted:
I would build the house in an area that doesn't have tornados. simple solutions and all that............. I've seen funnel clouds in Manitoba, so tornadoes can happen damn near anywhere. |
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Posted: 5/24/2011 12:32:50 PM EDT
[#3]
 Seriously though, I'd have to vote for monolithic.com. Concrete domes FTW. Preferably underground. I seriously don't understand people. We have the technology. We can do all sorts of crazy things. Why the FUCK would you rebuild with splinters of wood when you KNOW it's just gonna get blown down again? Fuck it, the Joplin area(and quite a bit of that part of the state, maybe the whole damn state I dunno) is full of caves(hell, Americold has a complete underground refrigerated warehouse complete with underground cave truck docks. Freaky to drive around in!). Rebuild the fucking city UNDERGROUND! Why the hell do people rebuild flimsy structures above ground in tornado land? Why do people rebuild on floodplains? WTF is wrong with people?  |
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Posted: 5/24/2011 12:37:52 PM EDT
[#4]
domeofahome.com
Comes damn close. |
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Posted: 5/24/2011 12:37:55 PM EDT
[#5]
Quoted:
I would build the house in an area that doesn't have tornados. simple solutions and all that............. THis. |
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Posted: 5/24/2011 12:39:14 PM EDT
[#6]
My family once owned a building in Jonesboror-Hodge, LA that myself and some other family members survived a tornado in.
As a matter of fact, we didn't even know there was a tornado. It was my grandfather's law office, and had been used to store meat way back when. the exterior walls were 4' thick brick, we always assumed this was to keep a constant temperature during the summer heat in Louisiana when they cooled meat there. F-4 or F-5...I doubt it, but it has been proven tornado proof for the smaller ones. |
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Posted: 5/24/2011 12:39:18 PM EDT
[#7]
I think a more practical discussion should be based on recognizing that most homes will not survive a direct hit from an F5.
However... A shitload of unnecessary damage happens every year from high winds and debris. I say unnecessary because it is s easily preventable. Why do we build homes in the US with fake decorative shutters? Is it really that hard to make real ones you can close? Why have they established working codes in Florida that have been shown to keep roofs on houses better, and you couldn't apply them in the midwest even if you wanted to, since few if any people know how to build to them or even how to get the materials. Don't get me started on earthquake precautions as well. |
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Posted: 5/24/2011 12:39:55 PM EDT
[#8]
Quoted: I would build the house in an area that doesn't have tornados. simple solutions and all that............. Where would that be? There have been killer tornadoes in every state in the Union. |
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Posted: 5/24/2011 12:41:45 PM EDT
[#9]
Quoted:
A shitload of unnecessary damage happens every year from high winds and debris. I say unnecessary because it is s easily preventable. Yep. secure your stuff so it doesnt blow away/into someones bedroom. |
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Posted: 5/24/2011 12:43:16 PM EDT
[#10]
Quoted:
I think a more practical discussion should be based on recognizing that most homes will not survive a direct hit from an F5. However... A shitload of unnecessary damage happens every year from high winds and debris. I say unnecessary because it is s easily preventable. Why do we build homes in the US with fake decorative shutters? Is it really that hard to make real ones you can close? Why have they established working codes in Florida that have been shown to keep roofs on houses better, and you couldn't apply them in the midwest even if you wanted to, since few if any people know how to build to them or even how to get the materials. Don't get me started on earthquake precautions as well. You have some good points. And about the earthquake thing..... yeah, when the New Madrid fault goes, there's going to be alot of damage simply because buildings in the area aren't built for earthquakes. |
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Posted: 5/24/2011 12:46:45 PM EDT
[#11]
Quoted: I would build the house in an area that doesn't have tornados. simple solutions and all that............. Meh...we already let the Mexicans and the liberals have those places that do not have frequent tornadoes. |
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Posted: 5/24/2011 12:54:13 PM EDT
[#12]
Quoted: <snip> decommissioned missile silo. <snip> Now we are talking   |
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Posted: 5/24/2011 12:56:26 PM EDT
[#13]
My aging eyes read "tomato proof house."
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Posted: 5/24/2011 1:04:14 PM EDT
[#14]
This thread makes me miss the old "American Survivalist" magazine. Last I heard it was still available as an online only subscription magazine. I'm old school though, I like to hold printed material in my hands.
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Posted: 5/24/2011 1:05:06 PM EDT
[#15]
Buy a piece of property up the road and put a mobile home park on it to lure it away
But seriously, +1 for the low-profile reinforced concrete dome. Probably the only aboveground shelter that would stand a chance. |
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Posted: 5/24/2011 1:06:30 PM EDT
[#16]
Underground, and you have zero wind resistance
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Posted: 5/24/2011 1:12:51 PM EDT
[#17]
Quoted:
My aging eyes read "tomato proof house." http://1.bp.blogspot.com/_I5F4U2tYwmk/TD_DkOOfQFI/AAAAAAAACYA/SnSahR6FnQ8/s400/Emily+LItella.jpg To be perfectly honest, I have read more than one thread title or article this past few days as "killer tomatoes." |
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Posted: 5/24/2011 1:20:45 PM EDT
[#18]
http://www.monolithic.com/stories/minimal-tornado-damage-at-faith-chapel
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Posted: 5/24/2011 1:31:19 PM EDT
[#19]
Quoted: Quoted: <snip> decommissioned missile silo. <snip> Now we are talking http://4.bp.blogspot.com/_H1iZ0osNp3U/STacF6VIwwI/AAAAAAAAAXw/I-C5_iWB6p8/s400/missile-homes.jpg How much woud it cost to build that from scratch? |
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Posted: 5/24/2011 1:32:41 PM EDT
[#20]
Quoted: i guarantee you could build a tornado proof house but i don'tBrick veneer would get ripped off. Even if properly tied to the furring strips. A 6" concrete roof would likely get ripped off. About the only thing that would survive an EF4 would be hemispherical igloo type made with reinforced concrete. think you would want to pay for it
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Posted: 5/24/2011 3:19:38 PM EDT
[#21]
Quoted:
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Quoted:
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What about the pressre drop (on humans)? Not enough to worry about. From Wiki: A pressure deficit of 100 millibars (2.95 inHg) was observed when a violent tornado near Manchester, South Dakota on June 24, 2003 passed directly over an in-situ probe. In less than a minute the pressure dropped to 850 millibars (25.10 inHg), which is the lowest pressure ever recorded at the Earth's surface when adjusted to sea level.[16] I would imagine that the human body would have some problems if it had to endure 25" of mercury for any legth of time.  I think the pressure at the top of Mount Everest is much lower than that.
25 inches of mercury? If that was hazardous to humans I would have been dead a LONG time ago since that's only like 6,000 feet. 
http://www.engineeringtoolbox.com/air-altitude-pressure-d_462.html |
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Posted: 5/24/2011 3:32:52 PM EDT
[#22]
Move to Appalachia or the Rocky Mountains. Problem solved.
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Posted: 5/24/2011 3:35:38 PM EDT
[#23]
They build very thick walled concrete structures in Puerto Rico due to the constant hurricanes. Seem to hold up pretty well.
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Posted: 5/24/2011 4:25:26 PM EDT
[#24]
My concrete front porch is the roof of my tornado room in my basement. I have a steel door that opens to the inside. The room is L shaped and I'm quite comfortable to hang out there during tornadoes. I see so many put in basements and they pour the concrete walls for their porch and they then fill it with sand. The builder who built this house he didn't fill his with sand but braced it up with plywood and then poured a good slap on top of it. My big old porch just looks like any other but it's a great room to have in Kansas.
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Posted: 5/24/2011 4:27:18 PM EDT
[#25]
Quoted:
Quoted:
Quoted:
Quoted:
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Would 6" of reinforced foam insulated concrete with an outer layer of brick and a "secondary" roof made from 6" thick reinforced concrete be enough to take a direct hit from the types of tornadoes that have been hitting the south and mid-west? If not how thick would the walls need to be?
Also how well would such a house fair against small arms fire upto an incuding .50MBG fire and grenades? Just build a simpler structure under ground. And how does that work when your basement is covered in debris(can't get in or out) or is now exposed to sky? Have a chainsaw handy. Groovy solution. "Let me chainsaw through this metal hatch really quick so I can get the debris on top"
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Posted: 5/24/2011 4:28:56 PM EDT
[#26]
Quoted:
People get the misconception that it's the wind from a tornado that destroys houses and property. In most cases, it's not the wind, but wind-launched missiles, such as cars, propane tanks, trees and other construction debris. To build a truly tornado-proof structure, you'd have to design it to withstand the impact of missiles weighing a couple of tons traveling at up to 70 MPH. That works out to a metric buttload of energy. North Korean missiles? |
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Posted: 5/24/2011 4:36:28 PM EDT
[#27]
Build it like a military ammo storage bunker.
They are concrete covered with a thick layer of dirt. |
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Posted: 5/24/2011 4:43:11 PM EDT
[#28]
'Tornado proof' is similar to 'bullet proof'. It only works until a big enough tornado comes along.
Quoted: I always thought this looked interesting ! http://www.dsgnwrld.com/wp-content/uploads/Bunker-Chicago-IL-USA-6.jpg Too many surfaces for the wind to push against. |
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Posted: 5/24/2011 4:43:48 PM EDT
[#29]
Quoted:
Move to Appalachia or the Rocky Mountains. Problem solved. Hate to ruin your theory there, but I live in an area hit by the last batch of tornadoes. There are mountains all around me. I live in a town called Mountain City (go figure). The ridge-line that the Appalachian trail follows is visible from my house. There were 3 killed in early reports. The actual was about 10. Of course the first three were in mobile homes. The valley between the mountains acts like a bowling alley with the bumper rails up.
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Posted: 5/24/2011 4:44:37 PM EDT
[#30]
Quoted: I always thought this looked interesting ! http://www.dsgnwrld.com/wp-content/uploads/Bunker-Chicago-IL-USA-6.jpg Holy HALO!!!! That's effing SHWEEET!!!! |
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Posted: 5/24/2011 4:48:32 PM EDT
[#31]
Quoted: Quoted: <snip> decommissioned missile silo. <snip> Now we are talking http://4.bp.blogspot.com/_H1iZ0osNp3U/STacF6VIwwI/AAAAAAAAAXw/I-C5_iWB6p8/s400/missile-homes.jpg And it was called..........................RACCOON CITY!!!! |
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Posted: 5/24/2011 4:53:14 PM EDT
[#32]
Quoted:
http://www.ar15.com/forums/topic.html?b=10&f=17&t=625006 http://www.monolithic.com/ You're probably still hosed on .50 cal protection. .30-06 yes, .50 no. Yes, somebody tried it. Monolithic domes are rated to well above EF5 These guys build an F5 rated concrete, above ground, safe room. You could apply their techniques to the entire house, be expensive as hell. |
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Posted: 5/24/2011 4:53:43 PM EDT
[#33]
Quoted:
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What about the pressre drop (on humans)? Not enough to worry about. From Wiki: A pressure deficit of 100 millibars (2.95 inHg) was observed when a violent tornado near Manchester, South Dakota on June 24, 2003 passed directly over an in-situ probe. In less than a minute the pressure dropped to 850 millibars (25.10 inHg), which is the lowest pressure ever recorded at the Earth's surface when adjusted to sea level.[16] I would imagine that the human body would have some problems if it had to endure 25" of mercury for any legth of time. I think the pressure at the top of Mount Everest is much lower than that.
25 inches of mercury? If that was hazardous to humans I would have been dead a LONG time ago since that's only like 6,000 feet.
http://www.engineeringtoolbox.com/air-altitude-pressure-d_462.html Thanks for the info. I was just thinking about how the vacume on a car's intake manifold feels on my finger (20 some inches), and it seems like I would not want to be in there. But I guess it is not that bad. |
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Posted: 5/24/2011 4:57:45 PM EDT
[#34]
A foundation on a hydraulic lift so you can lower the whole thing into the ground.
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Posted: 5/24/2011 5:00:45 PM EDT
[#35]
A tornado-proof house wouldn't even look like a house.
And considering the odds of a Tornado hitting your house, it's better and cheaper to just build an underground shelter. |
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Posted: 5/24/2011 6:36:10 PM EDT
[#36]
Quoted:
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Think of everything around your structure hitting your structure at over 70mph. Pretty tough to design around that. Surround the structure with tall steel pipes? You may be onto something. |
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Posted: 5/24/2011 6:44:16 PM EDT
[#37]
I have a rental property in North Minneapolis that just took a direct hit. Window and roof damage. Structure is still sound. 1923 or '28 construction, brick and stucco. I am meeting the insurance adjuster in the morning. From what I hear, the 'hood looks like a war zone.
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Posted: 5/24/2011 7:19:17 PM EDT
[#38]
Quoted: I always thought this looked interesting ! http://www.dsgnwrld.com/wp-content/uploads/Bunker-Chicago-IL-USA-6.jpg I'm thinking that's mostly plywood covered in stucco. I have no actual knowledge, but the dimensions just don't look right for massive concrete construction. |
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Posted: 5/24/2011 7:23:38 PM EDT
[#39]
Quoted: I would build the house in an area that doesn't have tornados. simple solutions and all that............. That would mean abandoning many states. People who suggest such things should just move back to France. |
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Posted: 5/24/2011 7:25:36 PM EDT
[#40]
Quoted:
Quoted:
I would build the house in an area that doesn't have tornados. simple solutions and all that............. THis. There is not a single place on Earth that is immune from a tornado. Well, the bottom of the ocean maybe. |
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Posted: 5/24/2011 7:28:17 PM EDT
[#41]
Quoted: Quoted: Quoted: Would 6" of reinforced foam insulated concrete with an outer layer of brick and a "secondary" roof made from 6" thick reinforced concrete be enough to take a direct hit from the types of tornadoes that have been hitting the south and mid-west? If not how thick would the walls need to be? Also how well would such a house fair against small arms fire upto an incuding .50MBG fire and grenades? Just build a simpler structure under ground. And how does that work when your basement is covered in debris(can't get in or out) or is now exposed to sky? I don't know, today I watched live feed from a helicopter of a family climbing out of their shelter from under what little of their house wasn't scattered into the nearby field. It definitely convinced me: If I lived out there I'd build a cellar. |
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Posted: 5/25/2011 12:32:59 AM EDT
[#42]
Quoted:
Quoted:
Quoted:
Quoted:
Quoted:
Would 6" of reinforced foam insulated concrete with an outer layer of brick and a "secondary" roof made from 6" thick reinforced concrete be enough to take a direct hit from the types of tornadoes that have been hitting the south and mid-west? If not how thick would the walls need to be?
Also how well would such a house fair against small arms fire upto an incuding .50MBG fire and grenades? Just build a simpler structure under ground. And how does that work when your basement is covered in debris(can't get in or out) or is now exposed to sky? Have a chainsaw handy. Groovy solution. Get an ax. |
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Posted: 5/25/2011 1:58:03 AM EDT
[#43]
Quoted:
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What about the pressre drop (on humans)? Not enough to worry about. From Wiki: A pressure deficit of 100 millibars (2.95 inHg) was observed when a violent tornado near Manchester, South Dakota on June 24, 2003 passed directly over an in-situ probe. In less than a minute the pressure dropped to 850 millibars (25.10 inHg), which is the lowest pressure ever recorded at the Earth's surface when adjusted to sea level.[16] I would imagine that the human body would have some problems if it had to endure 25" of mercury for any legth of time. I've lived in an average of 25" for 35 years or so. It's really not a big deal. Just don't try to keep up with us highlanders at the bar when we go don to sea level 
Heck, I'll be spending Saturday at 20" or so. I doubt I'll notice the difference. |
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Posted: 5/25/2011 3:02:33 AM EDT
[#44]
"Earth Sheltered" is what you're after.
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Posted: 5/25/2011 3:11:44 AM EDT
[#45]
Build underground, only part of house that is above ground is the entrance, which could be built flush with ground or maybe raised by a foot or so to accomodate the door and maybe the mechanism to make lifting the reinforced door easier. Barring that, you would be hard pressed to make an above ground structire "tornado proof"
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Posted: 5/25/2011 3:24:27 AM EDT
[#46]
Here is a little different style of dome.
http://www.aidomes.com/ http://www.aidomes.com/basic-kit-prices/article/68-2009-basic-kit-prices/83-prices-a-finished-cost (prices are double what it was in the mid 90's.) |
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Posted: 5/25/2011 3:32:12 AM EDT
[#47]
A 6" concrete roof is pretty heavy and make the house expensive. A direct hit from a tornado is rare and not much is going to survive.
It's more reasonable to buy or build a small storm shelter and insurance for the house. |
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Posted: 5/25/2011 3:52:47 AM EDT
[#48]
This design works pretty good
Why, it can even be used as a weapon! 
____________________________________________________ ("Are you a good witch or a bad witch?"––Glinda, (w,stte), "The Wizard of Oz") |
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Posted: 5/25/2011 4:12:00 AM EDT
[#49]
Quoted:
This design works pretty good http://www.starbacks.ca/~ozfan/galefarm.jpg Why, it can even be used as a weapon! http://cdn.mamapop.com/wp-content/uploads/2011/03/Wizard-of-Oz-House-Ruby-Slippers.jpg ____________________________________________________ ("Are you a good witch or a bad witch?"––Glinda, (w,stte), "The Wizard of Oz") Damn! Someone dropped a house on Ronald McDonald! 
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Posted: 5/25/2011 4:22:15 AM EDT
[#50]
We put an above ground tornado room in our shop should the need ever arise.
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