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SUPER-STRONG......up to 225 mph Hurricane Winds & Category 4 Tornado Guarantee The dome's geodesic shape combined with the steel reinforced concrete exterior allows for such a guarantee. Ai's standard design will accommodate up to 225 mph hurricane winds, category 4 tornadoes and 75 lb. snow loads. In over 35 years, Ai domes have survived all major USA hurricanes (Andrew & Katrina), tornados, a Hawaiian earthquake, and a 30" in diameter hickory tree impact with no structural damage. To read a recap of the Ai dome and acts of nature, click Nature.

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THIS FERROCONCRETE DOME COST ONLY $400! It certainly ain't a mansion, but this cute little concrete dome home built by Jill Abrahamson and Charles Buell in upstate New York has already provided the young couple with snug quarters through a frigid winter. The structure rests on a 3'-deep 14"-wide foundation trench that was filled up to ground level with fieldstone and concrete. (Jill and Charles now feel that either a concrete slab or a series of 8" piers spaced two feet apart would have made an adequate — and simpler — foundation.) The front (facing south, of course, to make the best use of available sunlight) of the concrete cabin was built up first and consists of a "window high" stone wall and wooden framing for a door and two windows. A skeleton of 6"-mesh "road reinforcing wire" was then set up for the dome itself with one layer of 1/2"-mesh chicken wire on its inside and from five to seven layers of 1"-mesh on the outside.

Mike's Spacetime For 2009, with the cube project in full swing Alissa and I decided we wanted more comfort on the playa. We had been donated a bare steel dome and so we needed to build a cover for it. Here are the construction & assembly plans, including, for sake of completeness, the design for the actual geodesic structure itself, even though we didn’t actually build it. UPDATE: I just gave a little presentation on geodesic domes and these insulated playa domes: Here’s the presentation: MikeTyka_PlayaDomes_Icosahedra.pptx The geodesic steel frame

The Monolithic Dome Monolithic Domes are constructed following a method that requires a tough, inflatable Airform, steel-reinforced concrete and a polyurethane foam insulation. Each of these ingredients is used in a technologically specific way. Our domes can be designed to fit any architectural need: homes, cabins, churches, schools, gymnasiums, arenas and stadiums, bulk storages, landlord dwellings and various other privately or publicly owned facilities. Monolithic Domes meet FEMA standards for providing near-absolute protection and have a proven ability to survive tornadoes, hurricanes, earthquakes, most manmade disasters, fire, termites and rot.

Touch the Earth Ranch Our Tire-House Story We started in 1989, by wanting to build an earth-friendly house in which to retire. We had inherited the property, now we needed the house. Building Concrete Geodesic Domes A geodesic dome is comprised of many slightly curved triangular panels. Most geodesic domes are constructed from kits, which simplifies the construction. The beauty of geodesic domes is that they require substantially less buildings materials and yer provide a stronger finished structure than any other type of building.

Peter's Concrete Block Dome Peter Roberts has been building a unique dome structure in the woods and is sharing it with us. I discovered Peter when he posted a picture on the Tiny House Blog’s Facebook page. Peter’s inspiration came from throwing giant pots. 2v Dome calculation tools Enter the radius or height of the dome, then click the calculate button. Hub and strutt constructionTo build a 2v geodesic dome framework you will need: 30 lengths of 'A' size struts 35 lengths of 'B' size struts 6 five way hubs 10 six way hubs 10 four way hubs - around the base of the dome. Use the diagram below to assist with assembly Panelised construction To build a 2v geodesic dome using panels you will need: Why build a concrete dome? The concrete dome is similar in shape and structure to an egg which has always been a fascination. The egg shows us that a relatively soft and weak material can be used to create a very strong structural shape. A simple demonstration illustrating the strength of an egg was made using a 2′ × 10′ wood plank, supported on one end by a rigid support and on the other end by one hard boiled egg.

Rammed Earth Works Building from the Watershed One of the primal attractions to building with earth is harvesting raw materials from the construction site itself. In the old days (pre-industrial revolution), that was always the case. Soil dug from the foundation trenches or from a nearby borrow pit was either molded into sun-dried bricks…