The broken lines illustrate unclaimed portions and form no part of the claimed design. The broken away symbols in the drawings indicate indeterminate length and any portion of the roofing deck ceiling system extending beyond the symbolic break forms no part of the claimed design. The roofing deck ceiling system is shown with symbolic breaks in its height to indicate indeterminate height; the appearance of any portion of the roofing deck ceiling system between the break lines forms no part of the claimed design.