US: Kingspan Insulation has expanded its GreenGuard extruded polystyrene (XPS) insulation board range with additional thickness products and strengths. The range now includes 3 inches and 4 inches in select 25, 40 and 60 psi compressive strength boards, and a new four-sided routed drainage channel board. The new products are intended to extend the GreenGuard line into roofing, cold storage, and various below grade and vertical wall applications markets.