This robust seismic cover is engineered for large expansion joints, accommodating gaps up to 250mm. Its innovative design features a specialized damper system that allows the central cover plate to move freely while preventing noisy ‘flapping’ under dynamic traffic loads. This heavy-duty solution effectively combines flexibility with stability, making it ideal for high-stress environments. The cover comes standard with a moisture barrier, providing comprehensive protection against water infiltration in addition to its superior movement capabilities.