Abstract: A metallic ceiling facing comprises a supporting grid and cassettes. The supporting grid has longitudinal struts and transverse struts provided with projections upon which the cassettes lie in a sealing manner. In order to obtain a cassette arrangement that satisfies aesthetic requirements and ensures the tightness required, the projections have vertically projecting webs upon which the cassettes rest. Seals are mounted on the projections and bear against the cassettes in the mounted position. A secure, consistent mechanical arrangement of the cassettes in the supporting grid is thus ensured, as well as a sufficiently tight sealing fit.

Abstract: A metallic ceiling lining consists of a supporting grid of longitudinal struts and transverse struts and cassettes arranged in the grid compartments. The longitudinal struts and transverse struts have their lower ends. The cassettes rest in a gastight manner on the projections and the longitudinal struts are designed as essentially rectangular hollow profiles. To permit the attachment of ancillary devices such as lights or partitions witout impairing the gastightness of the ceiling lining, the hollow profile is designed as a closed duct and the longitudinal strut also has a region of tubular cross-section for mounting suspended elements. The invention is applicable to all types of gastight ceiling linings.