Interlocking roof panels with built in pitch

DETAILED DESCRIPTION The very longstanding but heretofore unfulfilled need for an EPS roof panel construction that obviates the need to slope roofs and ceilings at a common pitch is now fulfilled by interlocking EPS panels having flat bottoms and pitched tops.
In a first illustrative embodiment, the top and bottom surfaces of the panels are covered with a metallic skin; in a second illustrative embodiment, only the top surface is so covered.
Both embodiments include the use of cores of non-EPS construction.
The first embodiment has utility in those constructions where the EPS panels are employed as the primary roofing material; the second embodiment has utility where EPS panels are placed over an existing roof to enhance its insulation or for other reasons.
In both embodiments, a side elevational view of the panels shows a flat bottom and a sloping top, i.
e.
, the top and bottom of the panel are oblique with respect to one another; the angle of the top surface determines the pitch of the roof.
Thus, a space covered by either embodiment--even though only the first embodiment would be employed in original construction--would have a flat ceiling.
Thus, the side walls of the structure will have a common height, thereby obviating the need for a truss or to custom build the supporting walls as required when roof panels of uniform thickness are employed.
In new construction, accordingly, the add on look will be avoided and the appearance of a conventionally built roof will be provided.
The second embodiment also includes novel means for securing the panels to the existing roof.
Importantly, said novel means is not visible when the roof has been completed.
Just as importantly, the novel means eliminates the need for throughbores through the panels.
The primary object of this invention is to make obsolete the uniform thickness EPS roof panels of the prior art.
A closely related object is to make obsolete add on structures having sloped interior ceilings.
A general object is to advance the arts of original roof construction and roofover construction in a pioneering fashion