For Twinwall polycarbonate sheets, ventilated tape is first applied to the sheet’s end to provide effective protection. The U profile is then securely pushed over the tape, sealing the end of the sheet for a clean finish. U profiles are supplied in standard lengths of 2100mm, perfectly matching the 2100mm width of Twinwall sheets. Additionally, the profiles can be easily cut to size on-site for a custom fit, ensuring flexibility and convenience during installation.