Owens Corning is a global building products manufacturer that produces roofing materials, insulation products, and residential doors for construction and remodeling markets across North America and Europe. The company operates through three segments: Roofing (laminate asphalt shingles, roofing components, and oxidized asphalt), Insulation (fiberglass batts, spray foam, and specialty commercial products sold under brands like PINK® FIBERGLAS™ and FOAMULAR®), and Doors (wood, fiberglass, and metal residential doors acquired through strategic acquisition). Owens Corning generates revenue by selling to distributors, retailers, homebuilders, and contractors, with competitive differentiation based on product innovation, brand reputation (including its iconic PINK® trademark), service quality, and geographic proximity to customers.