- Push rhomboid roof tiles 44 × 44 into the folds, align to the vertical lacing and fasten to the pre-punched holes with the supplied PREFA 2.8/25 grooved nails (standard fastening 4 pcs. per rhomboid roof tile 44 × 44) (Fig. 1, 2 and 3).
- For PREFA coverings over multiple layers of bitumen (e.g. bitumen shingles), you will need longer grooved nails, such as 2.8/40. Please state separately when ordering.
- In areas particularly prone to storms, a wind load calculation is required and fastenings must be adjusted according to the calculation.
- If a protrusion of the rhomboid roof tile 44 × 44 from the eaves is not desired (Fig. 2), an additional hanging strip can be installed before laying the start plates (Fig. 3).
CAUTION: Do not bend the lower tip of the rhomboid roof tile 44 × 44 downwards.
