Building insulation products from Dow Building Solutions, Midland, Mich., have achieved recertification by the Cradle to Cradle Certification program. STYROFOAM Brand Extruded Polystyrene Foam Insulation and SAFETOUCH Fiberglass-Free Insulation were recertified at the SILVER level, while STYROFOAM SIS Brand Structural Insulated Sheathing, THERMAX (ci) Exterior Insulation, and STYROFOAM Brand Spray Polyurethane Foam Insulation all achieved BASIC recertification.