This is the basic sandwich that
builds your walls
There are lots of systems out there to build a structure to resist and hurricane and lots of options to maximize the energy efficiency of your walls. An insulated concrete formwork structure does both at the same time, which makes it very popular in hurricane prone regions for ecologically or operating cost conscious clients. The basic idea is to construct a building by laying up foam blocks and formwork that will stay in place, placing rebar into the empty void, and then pouring concrete to fill the void. If you’ve ever seen a wood structure in a high wind zone while it’s under construction, you’ve seen the severe amount of strapping and connectors and steel required to make the structure rigid enough to keep from being torn apart under high winds. The concrete structure, while not quite the bunker I describe above, is inherently rigid and impact resistant while also being mold and termite resistant due to the lack of food for either one. An added positive, with the thickness of the walls and the continuous insulation both inside and out provide a great amount of insulation and thermal mass to maintain comfort year round.