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Fasten each panel with two patent fasteners (standard fastening). The patent clips are fastened with one grooved nail 2.8/30 or 2.8/25 each. Use longer nails if necessary when using thicker separation layers.
The clips must be set approx. 3 cm next to the panel groove. In areas particularly prone to storms, a wind load calculation is required and fastenings must be increased or decreased according to the calculation or screwed fastenings used instead of nailed ones. If the fastenings with an increased number of clips are not sufficient according to the calculation, an additional fastening can be attached to the side of the shaft outlet (underlying shaft) with 2 Half-round screws (4 × 25 mm) per panel are used. The clip arrangement depends on the covering direction. The patent clips for roof tiles and shingles are provided with an additional grain. This grain makes it easier to nail through if this is not possible with the given hole (e.g. because of a knothole, gap in the formwork).
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