The NRG Plastic Washer is an integral component of the NRG Greenboard™ wall cladding system, designed to provide a stable mechanical fix for rigid insulation boards to both timber and steel frames. Engineered with a large diameter and a robust profile, the NRG Plastic Washer significantly increases the surface area of your fastener. This prevents the screw from tearing through the soft core of the insulation board, ensuring that the panels remain tightly pressed against the substrate even under wind load or structural movement.