How are the halves connected?
I was surprised and glad to see how.
There's 2x6 main beams on the floor and ceiling of both halves. They are made with connected three 2x6's, and run the entire length of both halves.
After the halves are positioned, they use three 9 inch lag bolts, screwed through in a triangle pattern, one on top, two in bottom, on about 2 inch spacing... They alternate the top/bottom pattern to give even strength. The triangle of lag bolts are spaced on 16" centers for the length of the main beams top and bottom.
I don't think it's gonna come apart in a breeze.
House is hurricane rated as Windzone 2.