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Capt Ed
Senior Member
1759 Posts |
 Posted - 03/14/2012 : 08:32:05 AM
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Has anyone had a Geodesic dome home built or know of a local builder that has built one?
26' Twinvee Cat
Twin Suzuki 175's
www.creeksidemetalworks.com |
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Bill D
Senior Member
220 Posts |
Posted - 03/14/2012 : 2:47:08 PM
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There was one on Sullivan's at Breech In. in the 70-80's.
Did it make it through Hugo? |
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13skulls
Senior Member
601 Posts |
Posted - 03/14/2012 : 3:01:55 PM
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| If you're really short I've got one about 18 inches tall my daughter and I built for a school project. Rent is cheap, but may consider selling. Joking aside, the house on Sullivan's had a TV news clip done after Hugo. It has some really cool cutting edge technology that helped it survive virtually unscathed. Bottom of house is designed to "blow out" to allow water/wind flow. Special windows and treatments etc. If I recall all of that came with a price. |
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RWL
Senior Member
1735 Posts |
Posted - 03/14/2012 : 3:30:56 PM
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| Why are you asking? To spend the amount of money to "hurricane proof" your home with a dome type structure, there are other ways that look alot better. Unless you like the dome look that is! There is alot to this equation, where exactly is the home (V zone, AE zone, etc) that will greatly affect what will have to done. There is only a certain point that is really feasible to design to. |
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iFly
Senior Member
665 Posts |
Posted - 03/14/2012 : 5:50:12 PM
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quote:
Originally posted by RWL
...To spend the amount of money to "hurricane proof" your home with a dome type structure, there are other ways that look alot better...
Does it cost more to "hurricane proof" a dome than to "hurricane proof" a 'traditional' house? |
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Capt Ed
Senior Member
1759 Posts |
Posted - 03/14/2012 : 6:36:15 PM
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The cost of one "dried in" is less than a stick built house. Heating and cooling is about half that of a traditional home. I'm on Johns Is on the water and wanted it because they are hurricane and tornado proof. But I learned today banks will not lien money on one, new regulations...kinda changes things now...
26' Twinvee Cat
Twin Suzuki 175's
www.creeksidemetalworks.com |
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Native_Son
Intermediate Member
60 Posts |
Posted - 03/14/2012 : 11:48:46 PM
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I'm curious about this. You mean, banks have a loan policy against house of a dome design or what?
The one on Sullivan's is still there as far as I know and it came through Hugo fine.
Hurricane-proofing a house depends a lot on whether you mean just high wind...or a frigging 15' high wave. The latter is a lot more destructive than 125mph winds I think.
You have the right to the pursuit of happiness. You do not have a guarantee that you shall have it. |
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penfishn
Prolific Poster
11560 Posts |
Posted - 03/15/2012 : 12:20:57 AM
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i think there Is one on James island in river land terrace. Looks like a dirt dauber house to me..but heard it has all the bells and whistles.think it belongs to Ross the chiropractor...he has that red tug boat looking thing out front of his place on his dock at wappoo l cut..
miss'n fish'n
212 SEAHUNT CC
Sea Squirt 16
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dream on
Intermediate Member
114 Posts |
Posted - 03/15/2012 : 07:41:06 AM
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| I think you are correct on the one in Riverland Terrace. |
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Capt Ed
Senior Member
1759 Posts |
Posted - 03/15/2012 : 08:35:17 AM
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quote:
Originally posted by Native_Son
I'm curious about this. You mean, banks have a loan policy against house of a dome design or what?
The one on Sullivan's is still there as far as I know and it came through Hugo fine.
Hurricane-proofing a house depends a lot on whether you mean just high wind...or a frigging 15' high wave. The latter is a lot more destructive than 125mph winds I think.
You have the right to the pursuit of happiness. You do not have a guarantee that you shall have it.
yes the last bank I checked with was BB&T they do write loans on geodesic dome homes nor do any bank do loans on manufactured homes that is on land that is a lot higher in value than the home is
26' Twinvee Cat
Twin Suzuki 175's
www.creeksidemetalworks.com |
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RWL
Senior Member
1735 Posts |
Posted - 03/15/2012 : 2:53:52 PM
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I guess since I am a structural engineer I look at this from a different perspective. I really shouldn't have used the term hurrincane proof. Houses can be designed for a set of design criteria, whether that be 120 - 135 mph winds as our code has it or above the required code say 155 mph winds or even higher. Obviously the higher wind speed the design is for, the bigger, stiffer and more costly the lateral force resisting system has to be. I would be leary of salesmen claiming that a type of home is hurricane and tornado proof as they put it. It all about what the design criteria is set at. new technologies and materials are coming out every year and it is probably getting more feasible to design this way, but the reason you have not seen more homes designed in this manner is cost outweighs the advantage. In other words, it was still cheaper to build a code house and pay the insurance. Unless things have changed, even if you design and build a home designed to take, say Cat 5 hurricanes and the equivalent of a 8.0 earthquake and you have to borrow money to build it, you are still going to be required to have insurance on the house and it will be based on where it is, so why spend the extra? Here is an article on the one built in 1991. It never mentions what wind speed it was designed to, but what is interesting is this was done in 1991. At that time, wind did govern the design of every structure in this area because of hurricanes. Since then, the new IBC code in 2000 greatly increased the seismic forces by about three times. With all of that concrete (250 tons according to the article) hanging from the shell, I wonder if the home would meet the newer seismic forces? Also, it probably wasn't designed for the force of the guys 3000 sf home that may come crashing into it during the next major hurricane, none that I know of are! i woudl be nice to have the time and someone paying to look into this but I have neither! lol Interesting subject.
Article: http://www.monolithic.com/stories/the-eye-of-the-storm |
Edited by - RWL on 03/15/2012 2:54:19 PM |
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Capt Ed
Senior Member
1759 Posts |
Posted - 03/15/2012 : 6:54:27 PM
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quote:
Originally posted by RWL
I guess since I am a structural engineer I look at this from a different perspective. I really shouldn't have used the term hurrincane proof. Houses can be designed for a set of design criteria, whether that be 120 - 135 mph winds as our code has it or above the required code say 155 mph winds or even higher. Obviously the higher wind speed the design is for, the bigger, stiffer and more costly the lateral force resisting system has to be. I would be leary of salesmen claiming that a type of home is hurricane and tornado proof as they put it. It all about what the design criteria is set at. new technologies and materials are coming out every year and it is probably getting more feasible to design this way, but the reason you have not seen more homes designed in this manner is cost outweighs the advantage. In other words, it was still cheaper to build a code house and pay the insurance. Unless things have changed, even if you design and build a home designed to take, say Cat 5 hurricanes and the equivalent of a 8.0 earthquake and you have to borrow money to build it, you are still going to be required to have insurance on the house and it will be based on where it is, so why spend the extra? Here is an article on the one built in 1991. It never mentions what wind speed it was designed to, but what is interesting is this was done in 1991. At that time, wind did govern the design of every structure in this area because of hurricanes. Since then, the new IBC code in 2000 greatly increased the seismic forces by about three times. With all of that concrete (250 tons according to the article) hanging from the shell, I wonder if the home would meet the newer seismic forces? Also, it probably wasn't designed for the force of the guys 3000 sf home that may come crashing into it during the next major hurricane, none that I know of are! i woudl be nice to have the time and someone paying to look into this but I have neither! lol Interesting subject.
Article: http://www.monolithic.com/stories/the-eye-of-the-storm
interesting points here... the hurricane proof comes from being able to withstand 120mph winds " 30psi p/sq ft" the dome suppose to handle 170 psi p/sq ft. but what happens when a cement block from your neighbor's yard hits your house at 120 mph.
26' Twinvee Cat
Twin Suzuki 175's
www.creeksidemetalworks.com |
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iFly
Senior Member
665 Posts |
Posted - 03/15/2012 : 7:54:04 PM
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quote:
Originally posted by RWL
...With all of that concrete (250 tons according to the article) hanging from the shell, I wonder if the home would meet the newer seismic forces?...
I thought the idea of a dome (or even an arch) was to transfer the forces along the shape of the dome? Why is all the concrete (that is integral to the structure) hanging? |
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JimIslander
Senior Member
1804 Posts |
Posted - 03/15/2012 : 8:53:45 PM
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quote:
Originally posted by penfishn
i think there Is one on James island in river land terrace. Looks like a dirt dauber house to me..but heard it has all the bells and whistles.think it belongs to Ross the chiropractor...he has that red tug boat looking thing out front of his place on his dock at wappoo l cut..
Yeah, it's on Wappoo Hall RD. Come into RT via Wappoo and turn right on Plymouth. Last right is Wappoo Hall. Dome is a few houses down on the left. We're down the other way. 
Tidewater 196DC
Yamaha F115
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Pungo 120 |
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TexasRed
Senior Member
1012 Posts |
Posted - 03/16/2012 : 07:29:28 AM
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There is a large hill back in Carlsbad, NM calle "C-Hill". That hill catches and concentrates a lot of wind and wind speeds have been recorded at 120 MPH in some of the canyons in a big wind storm. On the edge of C-Hill as one of those homes. When I was looking for a home in that area in 2001 it was for sale. When I left in 2008 it was still for sale. What I'm getting at is that these homes, while wind resistant, are only attractive to a small number of people and your resale chances would be compromised I think. I don't know if this home ever sold or not. I do know one of the major "turn-offs" for me was the lack of wall space to put furniture and hang pictures. The dome shape does not lend well to putting a couch against the wall or hanging a large piece of art on the wall. I had the same problem in an A-Frame house I rented years ago. The sloping walls made my art hang away from the wall and you could'nt hang anything over the couch because it ended up over your head and you would hit it getting up off the couch.
19' Sea-Pro CC
"Swagger Wagon"
Yamaha 115 - 2 stroke
14' CMF Skiff
25 Johnson - 2 stroke
14' Heritage Redfish
"There is no hunting like the hunting of man, and those who have hunted armed men long enough and liked it, never care for anything else thereafter."
Ernest Hemingway |
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RWL
Senior Member
1735 Posts |
Posted - 03/16/2012 : 09:11:31 AM
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quote:
Originally posted by iFly
quote:
Originally posted by RWL
...With all of that concrete (250 tons according to the article) hanging from the shell, I wonder if the home would meet the newer seismic forces?...
I thought the idea of a dome (or even an arch) was to transfer the forces along the shape of the dome? Why is all the concrete (that is integral to the structure) hanging?
If the interior walls and such are hanging from the shell, the gravity forces are being transfered into the shell and then to the foundation. I don't know why the interior walls would need to be concrete and he probably wanted wide open spaces under the home, thus no columns to support the floor and interior walls. Without seeing the plans or knowing the intent of the designer it is all specualtion. |
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RWL
Senior Member
1735 Posts |
Posted - 03/16/2012 : 09:18:08 AM
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quote:
Originally posted by Capt Ed
quote:
Originally posted by RWL
I guess since I am a structural engineer I look at this from a different perspective. I really shouldn't have used the term hurrincane proof. Houses can be designed for a set of design criteria, whether that be 120 - 135 mph winds as our code has it or above the required code say 155 mph winds or even higher. Obviously the higher wind speed the design is for, the bigger, stiffer and more costly the lateral force resisting system has to be. I would be leary of salesmen claiming that a type of home is hurricane and tornado proof as they put it. It all about what the design criteria is set at. new technologies and materials are coming out every year and it is probably getting more feasible to design this way, but the reason you have not seen more homes designed in this manner is cost outweighs the advantage. In other words, it was still cheaper to build a code house and pay the insurance. Unless things have changed, even if you design and build a home designed to take, say Cat 5 hurricanes and the equivalent of a 8.0 earthquake and you have to borrow money to build it, you are still going to be required to have insurance on the house and it will be based on where it is, so why spend the extra? Here is an article on the one built in 1991. It never mentions what wind speed it was designed to, but what is interesting is this was done in 1991. At that time, wind did govern the design of every structure in this area because of hurricanes. Since then, the new IBC code in 2000 greatly increased the seismic forces by about three times. With all of that concrete (250 tons according to the article) hanging from the shell, I wonder if the home would meet the newer seismic forces? Also, it probably wasn't designed for the force of the guys 3000 sf home that may come crashing into it during the next major hurricane, none that I know of are! i woudl be nice to have the time and someone paying to look into this but I have neither! lol Interesting subject.
Article: http://www.monolithic.com/stories/the-eye-of-the-storm
interesting points here... the hurricane proof comes from being able to withstand 120mph winds " 30psi p/sq ft" the dome suppose to handle 170 psi p/sq ft. but what happens when a cement block from your neighbor's yard hits your house at 120 mph.
26' Twinvee Cat
Twin Suzuki 175's
www.creeksidemetalworks.com
If the dome home is only designed for 120 mph winds (which is code for Johns Island) then I dont see the advantage of building one given the points that TexasRed just gave. I would think the whole point of building one of these homes would be that it can stand much higher winds. |
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Capt Ed
Senior Member
1759 Posts |
Posted - 03/16/2012 : 12:17:04 PM
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no the 120 mph is kinda the standard "hurricane Proof" . the dome homes I'll looked at are rated to over 300 mph winds. they claim tornado proof.
26' Twinvee Cat
Twin Suzuki 175's
www.creeksidemetalworks.com |
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Topic |
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Dome Homes
