"While not intended for occupants to remain inside during a hurricane, the structure is designed to minimize catastrophic damage and preserve the homeowner’s in

"While not intended for occupants to remain inside during a hurricane, the structure is designed to minimize catastrophic damage and preserve the homeowner’s investment, Mayne says. In case of a flood, the base of the house acts as a raft, allowing the home to rise on guide posts up to 12 feet as water levels rise. In the Lower 9th Ward, which saw some of the worst flooding in the city during Katrina, floodwater reached as high as 12 feet." Looks like this helps 'preserve' your house in the event of flooding.