Abstract: A knock-down seal assembly for an overhead-sectional door having horizontal joints between adjacent panels and a leading lateral edge that seals the lateral leading edge of the door as the door closes against the floor or traffic area. The seal assembly includes a pair of retainer rails which do not exceed about 6 feet in overall length. Each of the retainer rails has seal channels formed so as to extend from a bottom surface thereof for receiving a flexible weather seal strip. Each of the rails also has an extension channel formed so as to extend from the bottom surface thereof for receiving an elongate retainer clip. The retainer clip can be used to join the pair of retainer rails to form a single rail.

Abstract: A knock-down seal assembly for an overhead-sectional door having horizontal joints between adjacent panels and a leading lateral edge that seals the lateral leading edge of the door as the door panel closes against the floor or traffic area. The seal assembly includes a pair of retainer rails which do not exceed about 5 to 6 feet in overall length. The retainer rails have one or more seal channels formed in a bottom surface of the rail for receiving a flexible weather seal strip. The rails also have a separate extension channel formed in the bottom surface thereof for receiving an elongate retainer clip. The retainer clip can be used to join the pair of rails to form a single rail of a longer overall length.