US Patent 9109354 Rapid assembly of a modular structure

A modular structure formed by panels is disclosed, having a center compartment and first and second side compartments coupled to the opposing sides of the center compartment. Each panel of the modular structure is joined to each respective adjacent panel via a panel joining assembly to substantially prevent moisture from entering the modular structure. An upper roof panel coupled to the center compartment is joined to first and second lower roof panels coupled to the first side compartment and the second side compartment, respectively, via first structural joining assemblies so that the upper roof panel is elevated relative to the first and second lower roof panels to substantially prevent moisture from entering the modular structure.