To fasten corrugated roofing panels like the Suntuf 108653 Ridge Roof Cap Flashing, follow these steps: Preparation: Measure your roof area and cut the panels to fit if necessary. Ensure you have all the necessary tools and materials, including roofing screws, a drill, and sealant. Panel Placement: Start at one end of the roof and place the first panel with the label side facing up. Overlap the next panel by about 3-4 inches (7.6-10.2 cm). Drilling Holes: Pre-drill holes in the panels for each fastener using a quarter-inch bit. Fastening: Attach the panels to the roof structure using roofing screws with EPDM washers. Install one screw on the crown of every other corrugation and avoid over-tightening. Sealing: Apply silicone sealant along the vertical seams where the panels overlap to ensure a watertight seal. Finishing: Install ridge caps and any additional flashing as needed.