US Patent 7493729 Rooftop enclosure

The present invention relates to an improved commercial rooftop enclosure that utilizes a roof and wall panel design incorporated with structurally bent rails connecting the panel assemblies to each other and to a corrugated panel steel base. This forms the enclosure into a torsion box style building wherein the strength of the enclosure is derived from its overall “unibody” style construction. With this design the rooftop enclosure offers a lower overall profile, reduced weight and increased structural strength over its conventional counterparts.