Polyrib Polyrib Multiwall Polycarbonate Standing-Seam PolyRib multiwall polycarbonate standing-seam sheeting combines visual appearance, two sided UV protection, high thermal performance and great spanning in a total cladding system. With remarkable versatility the Ampelite PolyRib standing-seam system can be used with the tray hook externally or internally to provide the aesthetic look being sough for the … Continue reading PolyRib MultiWall Polycarbonate Standing Seam