The Sigma 8 Pro is a specially developed and optimized system for the invisible fastening of facade panels. Sigma 8 Pro enables rear-fastening of 8-mm thick fibre cement panels to wooden and metal substructures for a striking and elegant look. Sigma 8 Pro can be used for the Largo and Linearis formats and for large-format panels, offering selectable panel widths and lengths up to a maximum size of 3050 x 1250 mm, and a panel thickness of 8 mm.