No, panels will not sag or shift over time if the clips are installed according to Fastmount’s Clip Layout Guides. The precision engineering and proven track record in demanding marine and architectural environments demonstrates the system’s long term stability when properly installed.
However, placing clips excessively wide, around the perimeter of a 6-12mm thick ceiling panel, or using too few clips may contribute to panels sagging slightly between clips, depending on panel stiffness. Material quality and manufacturing precision of Fastmount clips ensure they maintain their spring tension and engagement properties through many use cycles.
Always follow the Clip Layout Guides (available via Technical Library) to find the correct clip spacing for different clips and various panel types to ensure long term performance.