PURPOSE: To joint adjacent roof boards to a longer through-clip, to increase joint strength of joint section in fitting roofer joint construction formed by fitting and loading a cap to the joint section with pressure and to increase wind-resisting strength specially against negative pressure. ;CONSTITUTION: A through-clip 3 is constituted of a pair of right and left arms 11 and the bottom 12 connected between the lower ends of both arms 11 and is formed in the shape of a gutter. Reinforced ribs 23 are projected to the upper parts of the outsides of the arms 11. Coupling sections 13 are provided to the upper ends of the arms 11. Coupling sections 8 of roof boards 4 are interlocked from the lower sides with the coupling sections 13 to joint. At that time, the free ends of the coupling sections 8 of the roof bards 4 are hooked and interlocked with stages 24 on the upper ends of the reinforced ribs 23, the coupling sections 8 receive negative pressure and are moved slantly downward, and the separation from the coupling sections 13 is prevented.;COPYRIGHT: (C)1995,JPO
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