NRG 40mm Starter Bead is specifically engineered for use with the 40mm NRG Greenboard insulated wall system, this starter bead acts as the critical foundation for your external cladding and rendering projects. This 3.5mm profile is designed to cap the bottom edge of 40mm EPS panels. By installing this bead first, you provide a solid, level starting point for your panels, which simplifies the entire installation process. It effectively shields the foam core from physical damage and helps manage water runoff at the base of the wall.