SOLID GEOMETRICAL CHOICES FOR STRENGTH

This acrylic scale model built in 1979 was the inspiration for a 30 year effort in building stronger better prefabricated homes. The configuration variety provided by these identical panels, their angles of intersection providing 3 axis of resistance to lateral forces instead of 2, the multiple orientations of the views provided gave Poirier a rush he could not resist to build them for all these years. Since 1979, a few changes were brought about, the actual rhombic dodecahedron was actually squashed vertically, then some roofs were transformed into 6-side pyramids, but the essential merit of the shape remained intact as the panels and the shells were proven to be equal or more resistive than planned.
This merit is firstly the unusually high resistance to side loads. This diagram makes it easy to understand what makes this possible. Whatever the direction