| abstract |
A panel for use in the cladding of walls and roofs in buildings is formed by structurally embossing a sheet (1) of commercial quality steel or aluminium with a selected embossment pattern (E) to provide the sheet with a certain increased strength characteristic. The sheet 1 is further strengthened by profiling (Fig 2), or alternatively by applying an additional strengthening component, such as a further strengthening sheet (2,6) to the base sheet (1). In particular, the panel can comprise a pair of spaced metal sheets (4,5), with one or both structurally embossed (E) and at least one possibly profiled, and with insulating material 3 provided between the spaced sheets (4,5). |