| 摘要 |
An assembly of a fastening clip and a roofing or siding sheet having wide-based ribs especially wherein a lateral male rib has means for interlocking with an overlying lateral female rib of a neighboring sheet, the male rib having a fixing channel for securing the rib to a structural member. The clip acts as a concealed fixing for the intermediate wide-based rib of the sheet, the clip having free arms to engage internal pockets in the rib and camming means secured to its base wall and rotatable relative to the base wall so that a free end of the camming means bears against the base wall of the rib, thereby urging the free arms of the clip into the internal pockets of the rib.
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