The Stuppy Mid-Wing Roof Vent is designed for poly-covered greenhouses. It adapts to any Stuppy Rainbow Plus®, System 2000® Rainbow or Diamond or Pro-Line Fortress greenhouses.

The mid-wing opens along the arch of the greenhouse above the gutter. By moving the opening of the vent farther up into the gable of the roof, the user can maximize the efficiency of natural ventilation.

Our Mid-Wing Vent is ideal for northern climates where minimal ventilation is required on bright days, however, users need to prevent ice or snow buildup on the gutter to enhance ventilation. The vents should be configured with properly sized sidewall and endwall vents to maximize the ventilation effect.