Abstract: Apparatus and associated method contemplating a roof assembly having a plurality of roof structurals. A rake plate having a panel flange is configured for attaching a roof panel thereto. A fastener connects the rake plate to the building structural. A rake plate retainer has a retention flange defining a fastener opening through which the fastener passes, and defines a standoff boss apart from the fastener that is configured to define a predetermined gap for the rake plate that permits operable movement of the rake plate relative to the building structural.

Abstract: A seam stabilizer for maintaining standing seam roof panels on module during installation, the seam stabilizer having profile members that provide pressing force on the standing seam for maintaining and aligning the horizontal and vertical shape of the standing seam formed at interconnected upstanding corrugations along the length of adjacent panels; a pressing mechanism moves the profile members into pressing engagement with the standing seam during installation. Further, a module set gauge extends between the profile members to fit over the opposing upstanding edge of the adjacent panel and secure same on module as the edge is secured to the underlying support members.