Abstract: A drive system for an overhead roll-up door assembly having a motor, a drive drum coupled to the motor, a first drive gear coupled to the drive drum proximate a first end of the drive drum, a second drive gear couple to the drive drum proximate a second end of the drive drum, a first column of drive teeth comprising a plurality of individual drive teeth fixed to a first side of a door panel, the first column of drive teeth engaging the first drive gear, and a second column of drive teeth comprising a second plurality of individual drive teeth fixed to a second side of the door panel, the second column of drive teeth engaging the second drive gear.

Abstract: A door assembly having a motor, a first drum coupled to the motor, a second drum, and a door panel coupled to the second drum, the door panel extending over the first drum, the door panel winding onto and unwinding from the second drum when engaged and moved by the first drum. Activation of the motor in a first direction causes the first drum to rotate in a first direction, causing the door panel to unwind from the second drum, and activation of the motor in a second direction, opposite to the first direction, causing the door panel to wind onto the second drum.

Abstract: A door panel for an overhead roll-up door assembly, the door panel having a first face, a second face, a top edge, a bottom edge, a first vertical edge, and a second vertical edge. A first keder is aligned along the first vertical edge, the first keder having a first elongated body surrounded by a first material, wherein a first portion of the first material is coupled to the first face of the door panel and a second portion of the first material is coupled to the second face of the door panel. A second keder is aligned along the second vertical edge, the second keder comprising a second elongated body surrounded by a second material, wherein a first portion of the second material is coupled to the first face of the door panel and a second portion of the second material is coupled to the second face of the door panel. A first column of drive teeth fixed to the first keder and a second column of drive teeth fixed to the second keder.

Abstract: A door assembly having a first side column and a second side column, wherein the first side column is positioned proximate a first side of the doorway and the second side column is positioned proximate a second side of the doorway, the first side column and the second side column each comprising a guide track and each guide track comprising a first portion and a second portion. The first portion of each guide track defines a first guide channel having a first depth extending from a rear portion of each guide track to a first engagement portion of each guide track, and the second portion of each guide track defines a second guide channel having a second depth extending from the rear portion of the guide track to a second engagement portion of each guide track, with the second depth being less than the first depth.

Abstract: A door assembly having a door panel fixed proximate a top edge of the door panel to a drum, the drum being rotatable in a first direction and a second direction to wind or open and unwind or close the door panel. The door assembly includes a first side column and a second side column, each positioned proximate a doorway which is opened and closed by the door panel. Each side column includes a guide track positioned to guide one of the first vertical edge or the second vertical edge of the door panel as the door panel is moved. A first column of drive teeth is positioned along the first vertical edge and a second column of drive teeth positioned along the second vertical edge, wherein each of the first column of drive teeth and the second column of drive teeth are formed by a plurality of adjacent drive teeth, each drive tooth in each plurality of drive teeth abutting an adjacent drive tooth as the door panel is wound and unwound from the drum.