A smoke vent including a curb and door assembly utilizing a continuous hinge assembly that extends an entire length of a door. Hinge members of the door assembly and curb define continuous, extruded hinge members such that the door is supported across the entire length of the hinge members, whereby localized deflection of the curb is avoided. By supporting the door across the entire length of the hinge member, a door seal can be evenly compressed against the curb so as to prevent moisture/water intrusion when the door is in a closed disposition. The door assembly can further include a dome member that substantially defines an upper and lower surface of the door(s). Each door can comprise a plurality of retainer clips that positively couple the dome member to extruded members that define a door frame while providing a moisture resistant seal between the dome member and the door frame.