Abstract: A metal covering for a roof deck which comprises: a spaced parallel array of corrugated pan supports, fastened to the deck; standoff support strips placed substantially centered therebetween and fastened to the deck, said standoff strips consisting of a base, a vertical member and a horizontal member spaced above the base; roof pans which lay on the corrugated pan supports and the horizontal member of the standoff supports in abutting relationship to the vertical member of the standoff support strip, abutting portions of the said roof pans consisting of an upturned edge on one side and an upturned edge with a downturned flange on the opposite side; the downturned flange being placed over the vertical member of the standoff support and the abutting upturned edge of the adjoining roof pan; the seam consisting of three pieces, the upturned edge of the roof pan, the vertical member of the standoff support, and the upturned edge of the adjacent roof pan, being dimple punched on alternating sides along the length o

Abstract: A metal covering for a roof deck which comprises a parallel series of roof pans laid substantially horizontally on the deck; said pans containing an upper receiving channel on one face and edge, and a lower receiving channel on the other face and edge, with adjacent pans being connected by a clip consisting of a sheet of metal narrower in width than the roof pan and supported in part thereupon; such clip containing a channel on one edge and a free edge, the channel being retained within the upper receiving channel of the roof pan, and a standoff support consisting a coupling flange portion retained within the combination formed above by the clip channel and the upper receiving channel of the roof pan, a base fastened to the deck, and a substantially vertical member therebetween; the lower receiving channel of the next adjacent roof pan receiving the free edge of the clip.