| 摘要 |
Building panels having foam cores covered by protective thin sheets of metal are interlocked at abutting edges by mating parts of the metal sheets. In a first embodiment, a first panel has an outwardly projecting tongue formed in an edge wall. The tongue abuts a flat edge wall of a second panel when the respective metal parts of the panels are interlocked. Sufficient play is provided to allow lateral movement of the interlocked panels to facilitate the construction of a structure that employs the panels. One of the interlocking metal plates is in the form of a trough so that if water enters a seam between the panels, such water is directed by the trough to a gutter. In a second embodiment, the tongue is formed in the second panel and channels are provided in the second panel to receive inwardly projecting, curled metal parts that engage complementally formed metal parts of the first panel.
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