Standing seam roof, panel therefor, and method of installation

A standing seam roof having a roof panel supporting means and a plurality of panels, each panel having a web adapted to bear on the panel supporting means and first and second flanges both extending up from the web at opposite sides of the web, said panel being adapted to be mounted on said supporting means adjacent another panel with the webs of the panels bearing on said supporting means, with said flanges standing up from said supporting means, and with the outside of the first flange of one panel alongside the outside of the second flange of the other, the first flange of the panel having an integral downwardly opening channel section extending longitudinally along its upper margin on the outside thereof, said channel section being provided with sealing means therein before assembly with another panel on said supporting means, said second flange having an integral sealing lip section extending longitudinally along its upper margin on the inside thereof adapted to fit in the channel section of an adjacent panel on said supporting means and sealingly engageable with the sealing means in the latter channel section to form a sealed standing seam, said plurality of panels being mounted on said supporting means one alongside another with their webs on the supporting means and their flanges standing up from said supporting means with the first and second flanges of adjacent panels alongside one another, and with the lip section on the second flange of one of two adjacent panels sealingly engaging the sealing means in the channel section on the first flange of the other of two adjacent panels, said roof further comprising means for holding each panel down on said supporting means, said hold-down means being secured to said supporting means and having a relatively thin leg extending up between the first and second flanges of adjacent panels and having means at its upper end extending over the sealing lip section at the upper margin of the second flange, said hold-down means comprising sheet metal clips each having a base section by means of which it is fastened to said supporting means, each clip having said leg extending up from said base section, and said means at the upper end of said leg comprising an integral hook hooked over said sealing lip section, said standing seam roof having thermal break means on said supporting means, said base section of the clip having downwardly extending flanges at opposite sides thereof penetrating into said thermal break means, said supporting means comprising purlins and said thermal break means comprising strips of cellular insulation material on the purlins, the base section of each clip being fastened to a purlin by a fastener extending through a hole in the base section and in the strip on the purlin and secured to the purlin, the height of each of said clips from the lower edges of the flanges at opposite sides of the base section of the clip to the top of the hook being such in relation to the height of the second flange of a panel that, with the base section flanges extending down through the strip to the purlin, the second flange of the panel is tightly secured to the purlin by the clip.

The method of installing a standing seam roof utilizing a plurality of roof panels, each panel having a web adapted to bear on panel supporting means of a roof and first and second flanges both extending up from the web at opposite sides of the web, said panel being adapted to be mounted on said supporting means adjacent another panel with the webs of the panels bearing on said supporting means, with said flanges standing up from said supporting means, and with the outside of the first flange of one panel along side the outside of the second flange of the other, the first flange of the panel having an integral downwardly opening channel section extending longitudinally along its upper margin on the outside thereof, said channel section being provided with sealing means therein before assembly with another panel on said supporting means, said second flange having an integral sealing lip section extending longitudinally along its upper margin on the inside thereof adapted to fit in the channel section of an adjacent panel on said supporting means and sealingly engageable with the sealing means in the latter channel section to form a sealed standing seam, said method comprising mounting a first of said panels on panel supporting means of a roof with its web engaging said supporting means and its flanges standing up, applying hold-down means for holding said first panel down on said supporting means, said hold-down means being secured to said supporting means adjacent the second flange of the first panel and having a relatively thin leg extending up on the outside of said second flange and means at its upper end extending over the sealing lip section of said second flange, assembling a second panel with the first panel alongside the first panel with the web of the second panel engaging said supporting means and its flanges standing up, the first flange of the second panel extending alongside the second flange of the first panel on the outside of said second flange and said leg of said holding means, and with the lip section on the second flange of the first panel in the channel section on the first flange of the second panel and sealingly engaging the sealing means in said channel section, applying hold-down means for holding down said second panel similarly to the applying of the hold-down means for the first panel, assembling a third panel with the second panel similarly to the assembling of the second panel with the first panel, and continuing adding holddown means and panels in similar manner.