We do not provide flashing– See Ridge Flashing Purchase & Install, .
3″ or 6″ x 100 ft. Adhesive Roll Flashing (below) Butyl Adhesive (facing down), Aluminum backing ( faces the sun). Polycarbonate is fastened to structure with screws & washers we sell. Tech & install data sheet

• Trim Components • Hardware •See Framing Guide & Install Manual in PDF format
• See Layout & Load & Bending If using Sikaflex follow instructions carefully. Or use Big Stretch for easier install.
Screws for Corner, at top & bottom of poly and in body of sheet Purchased Separately
Screws that come with Base & Cap Counting procedure for screws in body of sheet & perimeter