Dome structure

A domed structure comprising a plurality of rigid, polygonal panels secured together about their peripheral edges to define a hollow enclosure, said panels being flat and provided with laterally extending edge flanges throughout the periphery of each panel, said flanges projecting inwardly of the domed structure and being flat and continuous with the edges of the polygonal panels, said panels being arranged in basic sections and expansion sections with all of the panels in the basic sections being pentagonal and hexagonal with all of the flanges on the panels in the basic section having an included angle with the panel of 83.degree., the expansion section panels being constructed of a plurality of trapezoidal panels with parallel top and bottom flanges and upwardly converging end flanges, an end panel connected to each of the upwardly converging end flanges of each of the trapezoidal panels, the edge of each end panel remote from the trapezoidal panel to which it is attached being provided with an angular orientation to interfit with the panels in an adjacent basic section to provide a continuous peripheral wall, the included angle between the end flanges and the panel of the trapezoidal panels increasing from less than 90.degree. at the lowermost trapezoidal panel to greater than 90.degree. at the uppermost trapezoidal panel to provide a tapering arrangement for the domed structure with the number of basic sections and expansion sections being selected to provide a desired shape to the domed structure, and an apex panel of generally the same plan configuration as the plan configuration of the domed structure.