Chalet TC frame construction ?

For the roof, walls and floor they use interlocking aluminum for superstructure. They also use Rigid foam for insulation wich contribute to structural integrity. The roof is 4 inch thick with interlocking marine plywood fully walk on and ducted for a|c. Floor is 3 inch thick. they use hd steel tie down to old interlocking aluminum panel and wood. Every stress point bolted through steel plates(jack brackets,tie down points and walls floor roof)Before we place our order I called Chalet with a list of questions.