Owens Corning is a holding company. The Company is engaged in composite and building materials systems. The Company's products range from glass fiber used to reinforce composite materials for transportation, electronics, marine, infrastructure, wind energy and other markets to insulation and roofing for residential, commercial and industrial applications. The Company operates under three segments: Composites, Insulation and Roofing. The Composites segment is comprised of the Company's Reinforcements and Downstream businesses. Insulation segment includes products, such as thermal and acoustical batts, loosefill insulation, foam sheathing and accessories. The Roofing segment includes products, such as laminate and strip asphalt roofing shingles. The Company's subsidiaries are Owens Corning Sales, LLC and Owens Corning Receivables LLC.