Abstract: A closure rail may be secured along a ridge, hip, or eave of a roof to receive and secure panels in a roofing system. A closure rail may be made from a sheet of metal, folded or creased to create a cover, expanse, extension, flange, and hinge. The hinge may connect adjoining sides of the cover and expanse to allow the cover to close down on and secure an end of a panel. The extension may elevate the flange above the height of a rib on the panel to facilitate attachment of a ridge or hip cap or flashing. Multiple covers, separated by notches, may attach to an expanse, thereby allowing one closure rail to secure multiple panels. A closure rail may be used instead of “Z” closures. Such a method may allow for securing the closure rail to the roof before the panels.

Abstract: A closure rail may be secured along a ridge, hip, or eave of a roof to receive and secure panels in a roofing system. A closure rail may be made from a sheet of metal, folded or creased to create a cover, expanse, extension, flange, and hinge. The hinge may connect adjoining sides of the cover and expanse to allow the cover to close down on and secure an end of a panel. The extension may elevate the flange above the height of a rib on the panel to facilitate attachment of a ridge or hip cap or flashing. Multiple covers, separated by notches, may attach to an expanse, thereby allowing one closure rail to secure multiple panels. A closure rail may be used instead of “Z” closures. Such a method may allow for securing the closure rail to the roof before the panels.