(57) Structure of an arched monolithic panel for the roofing of industrial and civil buildings
and the like, constituted of a sheet from key-patterned external metal plate (1),
a sheet from internal metal plate (2), key-patterned or micro-staved, and the interposition
between said sheets of a thermally insulating material (3), comprising at least a
gasket (4) from yielding material to close, on the passage of air, the fissure created
between the flat borders of the lower sheets of two panels coupled through the overlapping
of a side key-pattern of a panel on that of the adjoining panel, a like gasket (5)
interposed between the high parts of said key-patterns overlapping each other, as
well as a sound-insulating and sound-absorbing acoustic barrier (6), interposed between
the micro-staved and micro-holed bottom of said lower sheet and said thermally insulated
material. Said structure comprises also a stiffening, substantially C-shaped element
located at the opposite ends of the panel, transversally with respect to the key-patterns
of said panel.
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