Abstract: A building system or combination of building structures which comprise panelized edge connected elongated rhombic triacontahedral structures for the roofs and walls, the walls being elongated vertical panels. The structures include hollow extruded connectors for joining the panels together and in some instances for joining the building structures together as a single unit. Externally the connectors are relieved to provide a flush surface appearance with the panels. The hollow connectors create strong lightweight structures with integral conduits for utilities. Tie downs to retain the structures in place can be threaded through the hollow connectors.One important optional feature is a foundation provided by vertical panels partially buried in the ground. This option provides a substantial improvement in the control of heat loss from the structures at minimum cost.

Abstract: The invention comprises means of constructing insulated enclosures and structures for housing, storage, emergency shelter and vacation homes. The structural materials required comprise principally only two components, panels of plastic insulating foam and extruded plastic connectors.The panels are shaped and sized to eliminate virtually all waste when cut from 4 foot by 8 foot sheets of rigid insulating foam. A single extruded connector joins the panels together along mutually adjacent edges and eliminates the need for complicated geometric connectors where three or more panels adjoin. The hinged configuration of the extruded connectors permits a virtually unlimited variety of structural enclosures to be constructed with 4 foot by 8 foot sheets of insulating foam plastic. Disclosed for illustration are a dome shaped structure with a plurality of alcoves extending outwardly from the periphery of the structure and other free form structures of "crystalline" shape.