The invention concerns the technical field of roof construction; in particular, devices for fixing a roof covering in the vertical corner of a flat roof.

A drip edge having a flange configured to rest against a roof surface following installation on a perimeter of the roof surface and a flap hingedly extending from a terminal edge of the flange configured to be positioned a predefined distance towards the center of the roof surface, as measured from an edge of the roof surface on which the flange is configured to be mounted, following installation of the flange on the roof surface, wherein the flap and flange, in combination, form a cavity configured to retain a shingle therein, thereby improving the strength with which the starter shingle is secured to the roof surface against wind uplift while improving its resilience to moisture intrusion and easing installation while also rendering shingle alignment more consistent.

A method includes obtaining a roofing membrane. A first layer of the roofing membrane is applied along a length of a roofing substrate covering a first portion of the roofing substrate. At least a first edge of the first layer is fastened to the roofing substrate. A second layer of the roofing membrane is applied over the first layer along the length of the roofing substrate such that a first edge of the second layer overlies the second edge of the first layer. The first edge of the second layer and the second edge of the first layer are fastened to the roofing substrate using a second fastener in a fastening zone along the length the roofing substrate. The second layer is reoriented such that the second layer overlies the fastening zone and covers a second portion of the roofing substrate adjacent the first portion of the roofing substrate.

A method includes obtaining a roofing membrane. A first layer of the roofing membrane is applied along a length of a roofing substrate covering a first portion of the roofing substrate. At least a first edge of the first layer is fastened to the roofing substrate. A second layer of the roofing membrane is applied over the first layer along the length of the roofing substrate such that a first edge of the second layer overlies the second edge of the first layer. The first edge of the second layer and the second edge of the first layer are fastened to the roofing substrate using a second fastener in a fastening zone along the length the roofing substrate. The second layer is reoriented such that the second layer overlies the fastening zone and covers a second portion of the roofing substrate adjacent the first portion of the roofing substrate.

The roof ice and water shield includes a bottom layer of asphalt material configured to lay against a roof surface following installation on a perimeter of the roof surface, the bottom layer having a terminal lower section configured to be adjacent a roof edge at the perimeter of the roof surface following installation, and the bottom layer having a terminal upper section opposite the terminal lower section. A top layer of asphalt material extends from the terminal lower section of the bottom layer in a direction towards the terminal upper section of the bottom layer, an upper section of the top layer is configured to create a watertight seal with the terminal upper section of the bottom layer, and a lower section of the top layer defines a flap configured to overlap the terminal lower section of the bottom layer during installation. A sealable drip edge pocket is between the flap and the bottom layer and configured to sealably envelop a top portion of a drip edge following installation.

The roof ice and water shield includes a bottom layer of asphalt material configured to lay against a roof surface following installation on a perimeter of the roof surface, the bottom layer having a terminal lower section configured to be adjacent a roof edge at the perimeter of the roof surface following installation, and the bottom layer having a terminal upper section opposite the terminal lower section. A top layer of asphalt material extends from the terminal lower section of the bottom layer in a direction towards the terminal upper section of the bottom layer, an upper section of the top layer is configured to create a watertight seal with the terminal upper section of the bottom layer, and a lower section of the top layer defines a flap configured to overlap the terminal lower section of the bottom layer during installation. A sealable drip edge pocket is between the flap and the bottom layer and configured to sealably envelop a top portion of a drip edge following installation.

A method includes obtaining a roofing membrane. A first layer of the roofing membrane is applied along a length of a roofing substrate covering a first portion of the roofing substrate. At least a first edge of the first layer is fastened to the roofing substrate. A second layer of the roofing membrane is applied over the first layer along the length of the roofing substrate such that a first edge of the second layer overlies the second edge of the first layer. The first edge of the second layer and the second edge of the first layer are fastened to the roofing substrate using a second fastener in a fastening zone along the length the roofing substrate. The second layer is reoriented such that the second layer overlies the fastening zone and covers a second portion of the roofing substrate adjacent the first portion of the roofing substrate.

A flashing laminate includes a non-reinforced thermoplastic sheet having a bottom surface, a first longitudinal edge, and a second longitudinal edge. The flashing laminate also includes an adhesive layer on a longitudinally extending portion of the bottom surface adjacent to one of the longitudinal edges. In one or more embodiments, the laminate also includes a release liner positioned over the adhesive tape.

A flashing laminate includes a non-reinforced thermoplastic sheet having a bottom surface, a first longitudinal edge, and a second longitudinal edge. The flashing laminate also includes an adhesive layer on a longitudinally extending portion of the bottom surface adjacent to one of the longitudinal edges. In one or more embodiments, the laminate also includes a release liner positioned over the adhesive tape.

The present disclosure relates generally to roofing structures, for example, suitable for covering houses and other structures. The present disclosure relates more particularly to a roofing structure including a decking layer, a base layer, a cap layer, and a plurality of rails disposed over the cap layer. The base layer includes a plurality of strips that form seams including a first base layer seam. The cap layer also includes a plurality of strips that form seams including a first cap layer seam that is spaced from the first base layer seam. The rails include a first rail that is aligned with the first base layer seam and a second rail that is aligned with the first cap layer seam.