These 20 foot (6 meter) diameter cement with foam insulation geodesic domes come with a hurricane, earthquake, tornado guarantee. A triangle is the strongest shape known to man. The dome's geodesic shape combined with the 5/8 inch thick steel reinforced concrete exterior allows for such a guarantee. This design will accommodate forces in excess of 250 mph winds, 90 lb. snow loads and #9 earthquakes. Because the spherical shape means reduced exposed surface along with high R-value 3 inch EPS foam insulation that does not degrade with time, moisture, or compaction, it virtually eliminates energy leakage to form a solid thermal envelope making heating or cooling extremely efficient for an easily maintained comfortable environment. The interior is finished with perlite cement.

Ideal for disaster relief situations, the domes can come in 20, 18 or 15 foot (6, 5.5 or 4.5 meter) diameter sizes. Five complete 20 foot size dome kits can be shipped in a single 45 foot high cube container. It is estimated that one dome shelter can be constructed per day building 4 at a time. In other words 4 domes in 4 days.

An entire community of these small domes could be constructed with a very large central 60 foot (18.3 meter) dome to house common shared facilities.

The square footage living space of the dome interiors are:

20 foot (6 meter) diameter dome = 294 sq feet

18 foot (5.5 meter) diameter dome = 238 sq feet

15 foot (4.5 meter) diameter dome = 165 sq feet

Installation time estimate for 4 domes once the land excavated and prepared

One day to put in 4 concrete slabs
One day for each row (rows are assembled using rolling scaffold with radial prop supports)
Four days have four dome kits assembled.
One day to plaster/cement inside and paint the exterior

During construction 4 to 6 slabs are poured in and the construction crew switches back and forth on the domes as they assemble them so that different stages can be completed, so that while the first row is curing on the first dome, they will go to the next dome and assemble the appropriate row. So in 4 days they will have 4 domes assembled. Then they finish the inside perlite/cement and paint the exterior. The domes have two 4 inch air inlets at the bottom and an air turbine at the top to exhaust hot air out.

If domes are required to be moved to a different location in the future, the installation of 5 I-bolts around the top of the dome allows the dome with its footing to be pickup up by a crane and moved if necessary.

Please contact us for further information how these could address the needs for your project