Clear Polycarbonate H-Section Joint (Choice of sheet thickness, and length) Creates strong connections, quickly! Clear H-profile joining strip, for creating sealed joints between polycarbonate sheets. Fits quickly and easily without any special tools. Suitable for 6mm, 10mm, and 16mm sheets, end-on-end, or side-to-side, in roofing and cladding projects. Designed as a one-part profile for strength, and with UV protection for longevity, polycarbonate H-sections are a great low-cost alternative to aluminium muntin bars. Features & Benefits Wide external face - better joint protection UV-protected exterior - blocks harmful radiation High flex profile - improved weatherproofing Polycarbonate extrusion - strong and lightweight Transparent material - discreet appearance One-part design - simple push-fit installation In addition to creating joints in carport, greenhouse, and other canopy roofs, H-sections can also be used in vertical applications, such as screens and cladding.