Building opening closure element, in particular window, façade element or door, which has at least the following features: a. a fixed frame composed of several frame profiles, b. a sash and/or sliding frame which is composed of a plurality of frame profiles and is movable relative to the fixed frame, c. wherein a circumferential frame rebate space is formed at least partially between the frame profiles (1', 2') of the fixed frame and the frame profiles (1', 2') of the sash and/or sliding frame, d. at least one ventilation duct which is formed in at least one of the frame profiles of the fixed frame or in at least one of the frame profiles of the sash and/or sliding frame and which has a first ventilation duct opening and a second ventilation duct opening, e. wherein a central seal is provided which divides the frame rebate space F into a first and a second region FI, FII, between which, in the ventilation position, air exchange is only possible via the ventilation duct, f. wherein the sash and/or sliding frame and the fixed frame are designed to close at least one of the ventilation duct openings (9, 10) in the closed position and to open both ventilation duct openings (9, 10) of the at least one ventilation duct in the ventilation position, characterized by g. an electromotive drive device for reversibly adjusting the sash and/or sliding frame from the closed position into the ventilation position, h. a control device provided in or on the building opening closure element and/or a controller provided externally thereto, which is adapted to control the electromotive drive device as a function of the position of the sash and/or sliding frame, i. wherein the control device and/or the external controller is also adapted to control the electromotive drive device as a function of one or more detected ambient conditions, such that the control device is adapted to control the electromotive drive device when a detected measured value of the ambient conditions or an ambient value calculated from the detected measured value of the ambient conditions reaches, exceeds or falls below an adjustable, in particular a preset, limit value, and j. the control device is adapted to control the electromotive drive device in such a way that the sash and/or sliding frame is moved from the closed position to the ventilation position or vice versa. a. a fixed frame composed of several frame profiles, b. a sash and/or sliding frame which is composed of a plurality of frame profiles and is movable relative to the fixed frame, c. wherein a circumferential frame rebate space is formed at least partially between the frame profiles (1', 2') of the fixed frame and the frame profiles (1', 2') of the sash and/or sliding frame, d. at least one ventilation duct which is formed in at least one of the frame profiles of the fixed frame or in at least one of the frame profiles of the sash and/or sliding frame and which has a first ventilation duct opening and a second ventilation duct opening, e. wherein a central seal is provided which divides the frame rebate space F into a first and a second region FI, FII, between which, in the ventilation position, air exchange is only possible via the ventilation duct, f. wherein the sash and/or sliding frame and the fixed frame are designed to close at least one of the ventilation duct openings (9, 10) in the closed position and to open both ventilation duct openings (9, 10) of the at least one ventilation duct in the ventilation position, characterized by g. an electromotive drive device for reversibly adjusting the sash and/or sliding frame from the closed position into the ventilation position, h. a control device provided in or on the building opening closure element and/or a controller provided externally thereto, which is adapted to control the electromotive drive device as a function of the position of the sash and/or sliding frame, i. wherein the control device and/or the external controller is also adapted to control the electromotive drive device as a function of one or more detected ambient conditions, such that the control device is adapted to control the electromotive drive device when a detected measured value of the ambient conditions or an ambient value calculated from the detected measured value of the ambient conditions reaches, exceeds or falls below an adjustable, in particular a preset, limit value, and j. the control device is adapted to control the electromotive drive device in such a way that the sash and/or sliding frame is moved from the closed position to the ventilation position or vice versa.