Dow Building Solutions, Midland, Mich., has completed a rigorous, external assessment of its building insulation products conducted by MBDC, a global sustainability consulting and product certification firm. STYROFOAM Brand Extruded Polystyrene Foam Insulation, STYROFOAM SIS Brand Structural Insulated Sheathing, THERMAX (ci) Exterior Insulation, STYROFOAM Brand Spray Polyurethane Foam Insulation and SAFETOUCH Fiberglass-Free Insulation have all achieved Cradle to Cradle certification, a process that assesses products for their ingredients’ human health, environmental health and recyclability profiles.