A sealing assembly for a hinged door is pivotable over a door threshold when the door is opened or closed. The sealing assembly includes an actuator responsive to closing of the door, the actuator having at least one connector rod extending along a channel and being movable longitudinally within the channel in response to the door closing. The rod is connected to a first end of at least one pivotable arm having rigid sections separated by flexible joints, with a second end of the arm being connected to a sealing member. The arm is flexible such that as the connector rod moves along the channel, part of the arm flexes vertically thereby imparting and maintaining vertical pressure on the sealing member.