01
Identify the actual hole position
Do not assume every pallet uses the same punch. Measure slate length, distance from the head to the holes and intended exposure. The remaining lap above the fasteners must work with the specified system.
02
Interlayment is system-dependent
Some lightweight or specialty applications use an interlayment strip between courses. Its width, overlap, attachment and compatibility must follow the system design; a roll material is not a universal substitute for proper slate lap.
03
Coordinate repairability
Fastener position and interlayment can affect how individual pieces are removed and replaced. The project should retain installation instructions, matching slate and any proprietary accessories for future maintenance.