Examples of the present disclosure provide an overhead door panel. The overhead door panel includes a pair of parallel glass panes, a metal frame with parallel lateral stiles oriented perpendicular to the pair of parallel glass panes, a first seal system located at a first lateral stile, and a second seal system located at a second lateral stile, wherein the first seal system and the second seal system engage with at least one glass pane of the pair of parallel glass panes and a lateral stile of the parallel lateral stiles of the metal frame such that the first seal system and the second seal system are between the at least one glass pane and the lateral stile.

A closure may include a door configured to seal an opening. The door may include a section with an internal cavity. The closure may also include a core within a first portion of the internal cavity of the section. The core may be configured to expand from a relaxed state to an expanded state and provide a seal between the door and an edge of the opening when the core is in the expanded state.

Examples of the present disclosure provide an overhead door panel. The overhead door panel includes a pair of parallel glass panes, a metal frame with parallel lateral stiles oriented perpendicular to the pair of parallel glass panes, a first seal system located at a first lateral stile, and a second seal system located at a second lateral stile, wherein the first seal system and the second seal system engage with at least one glass pane of the pair of parallel glass panes and a lateral stile of the parallel lateral stiles of the metal frame such that the first seal system and the second seal system are between the at least one glass pane and the lateral stile.

A hinge for movably attaching to parts together incudes: a first gear; a second gear; a cover configured to attach the first gear to the second gear; a first sliding surface on the cover; a second sliding surface on the cover wherein the first gear slides on the first sliding surface and the second gear slides on the second sliding surface when the hinge is operated; and an area on the first gear with no teeth and the area with no teeth is configured to slide past the second gear to allow the first gear to enter the cover. A method of assembling a hinge includes: moving a surface without gear teeth on a first gear past a toothed surface on a second gear; moving the first and second gears into a cover; meshing a tooth on the first gear with a tooth on the second gear; and holding the first and second gears together with the cover.

In example a panel for an overhead sectional door is provided. The panel includes a laminate core, a laminate skin, and a universal fabric hinge. The laminate skin is coupled to two opposing sides of the laminate core. The universal fabric hinge is coupled to the laminate skin to connect the panel to an adjacent panel of the overhead sectional door.

Examples of the present disclosure provide an overhead door panel. The overhead door panel includes a pair of parallel glass panes, a metal frame with parallel lateral stiles oriented perpendicular to the pair of parallel glass panes, a first seal system located at a first lateral stile, and a second seal system located at a second lateral stile, wherein the first seal system and the second seal system engage with at least one glass pane of the pair of parallel glass panes and a lateral stile of the parallel lateral stiles of the metal frame such that the first seal system and the second seal system are between the at least one glass pane and the lateral stile.

A high load retention system for a sectional overhead door enables uninhibited operation of a standard roller track mechanism of a sectional overhead door, while allowing high wind loads to be seamlessly transferred from the track mechanism to a more robust high load jamb retaining element. The system comprises: a plurality of primary door panels, each having a front face; a primary track; engagement elements each having a first end connected to a primary door panel and a second end that rides in the primary track; a high load jamb retaining element positioned adjacent to the primary track and having a clasping portion; and a high load door retaining element connected to a primary door panel and having a clasping portion corresponding to the clasping portion of the high load jamb retaining element.

A closure may include a door configured to seal an opening. The door may include a section with an internal cavity. The closure may also include a core within a first portion of the internal cavity of the section. The core may be configured to expand from a relaxed state to an expanded state and provide a seal between the door and an edge of the opening when the core is in the expanded state.

A hinge for movably attaching parts together incudes a first gear, a second gear, a cover configured to attach the first gear to the second gear, first and second sliding surfaces on the cover wherein the first gear slides on the first sliding surface and the second gear slides on the second sliding surface when the hinge is operated, and an area on the first gear with no teeth configured to slide past the second gear to allow the first gear to enter the cover. Assembling a hinge includes moving a surface without gear teeth on a first gear past a toothed surface on a second gear, moving the first and second gears into a cover, meshing a tooth on the first gear with a tooth on the second gear, and holding the first and second gears together with the cover.

A hinge for a bi-fold door is integrated with a pair of stiles. Each stile has a hinge flange integrated to the stile. Opposing stiles with opposing and aligned hinge flanges collectively create an integral hinge assembly that may be useful in thermal doors employing one or more thermal breaks.