Abstract: The invention relates to an arrangement for closing building openings in a watertight manner, wherein a frame is arranged at right angles on a watertight, stable covering panel, all the way round the latter and at a constant spacing from a wall of the building opening, and at least one pressure hose with an openable and closable pressure-hose connection is arranged all the way round the frame, and a periphery of the covering panel that projects beyond the building opening has, on the building side, an all-round sealing element and at least one swing-away handle is arranged on the outside of the covering panel, and projecting parts of the building opening are surrounded by the periphery of the covering panel such that the periphery of the covering panel, with the all-round sealing element, encloses the building opening in a watertight manner.