VEVOR Shutter Exhaust Fan 413 mm Wall Mounted Automatic Louvers Silver, Sturdy Steel Housing, 2270 CFM Low Noise, AC Motor, Ventilation and Cooling for Attic, Garage, Barn, Greenhouse, Workshop

This is difficult because the blinds are not motorized and close solely under their own weight. If installed vertically, the blinds would be much heavier, and there is a possibility that the wind might not be strong enough to open them. If this answer does not resolve your current issue, please contact us again for assistance.