A wind generator assembly for driving an electric generator having an inlet air riser having an upper end disposed to capture portions of roof level wind currents and a lower end. The lower end of the inlet air riser extends upward from and is in communication with an air box that houses a rotator assembly. An air inlet turret is mounted for rotation by roof currents to be directed to gather and pass a portion of the roof currents into the inlet air riser. The rotator assembly has a rotor supported on a support arbor that is rotated in a predetermined rotational direction by roof level wind currents. The support arbor is connectable to an electric power generator.