Procy Roof Panel - Insulating Roof Panel is a premium PIR sandwich roof panel, a new generation building material, composed of two faces of super durable 4-layer coated steel of Bluescope Company (Australia) and (Polyisocyanurate) PIR core on modern European technology continuous production line. 3-5 corrugation design and diverse depth, delicate and aesthetic; the surface is smooth or delicately ribbed with flexible length exactly cut according to design.