For covering we used Marlon ST Longlife triplewall 16mm thick polycarbonate plates with U-VALUE 2.4 W/m²K. Plates were size 2100 x 6000 mm, 4 pcs. Each plate was cut in two pieces. A 3500 mm long for south side and 2500mm long for north side. There was no waste of material at all 🙂
We used original mounting rails/profiles, because material will expand in summer and shrink in winter. I followed installation manual step by step.