OC vs JHX Comparison

Owens-Corning Inc is a manufacturer of glass fiber utilized in composites and building materials. It has an integrated business model with four reportable segments: Composites, Insulation, Doors, and Roofing. It generates maximum revenue from the Roofing segment. Its Roofing segment laminate and strip asphalt roofing shingles, roofing components, synthetic packaging materials, and oxidized asphalt. It meets the growing demand for longer-lasting, aesthetically attractive laminate products with modest capital investment. Geographically the company generates the majority of its revenue from the United States.

James Hardie is a manufacturer of fiber cement-based building products, selling primarily to the residential construction industry. North America is the primary geography, generating about 80% of group earnings. Here, it is the largest manufacturer of fiber cement, which is mainly used for exterior siding on houses. Following the Azek acquisition in 2025, it also produces wooden composite decking materials, siding trims, and accessories for outdoor areas including stair and deck railing. Businesses in Australia, New Zealand, and Europe, make up the rest of earnings.