The present invention is concerned with vertically sliding facade components. In order to improve operability and user comfort for vertically displaceable facade components, a weight compensation device (10) for vertically displaceable facade components comprises a spring element (12) for at least partial compensation of its own weight of a vertically displaceable facade component and a compensator (14). The spring element provides a spring force as a driving force (FAN) for lifting the vertically displaceable facade component. The spring element is movable between a compressed state (PK) and an expanded state (PE). The spring force has a decreasing value when moving from the compressed state to the expanded state. The compensator at least partially compensates for the decrease in the input force and provides an output force (FAB) that decreases less than the input force.