Abstract: A roof vent system for a grain storage device is disclosed. A roof vent including a lid is operatively connected to the roof panel adjacent the opening. The lid is configured to move between an open position and a closed position. A bias member configured to apply an upward bias force to the lid to automatically move the lid to the open position. A control lever that is movable between an upper position and a lower position. The control lever is operably connected to the lid by a pull. When control lever is moved to the lower position with a force greater than the bias force of the bias member, the lid is moved to the closed position. A sealing member attached to the lid is configured to provide a seal between the lid and the roof panel when the lid is moved to the closed position.