Owens Corning FOAMULAR NGX XPS insulation cuts embodied carbon by 50% in building envelope applications

Owens Corning has launched FOAMULAR NGX, a next-generation extruded polystyrene (XPS) insulation that reduces the global warming potential of its blowing agent mix by at least 50% compared to earlier FOAMULAR lines. The product maintains the high compressive strength and moisture resistance builders need for below-grade foundations, under-slab thermal breaks, and exterior continuous insulation. NGX boards are available in 15, 25, and 40 psi compressive strengths with R-values around R-5 per inch, competing directly with polyiso and high-density EPS in North American markets. The NGX redesign directly addresses a long-standing criticism of XPS insulation: its higher blowing-agent GWP versus EPS. Owens Corning has published Environmental Product Declarations documenting the improvement, positioning NGX for specifiers who need durable rigid foam but face tightening energy codes and corporate decarbonization targets. The product is manufactured in several U.S. and Canadian facilities and distributed through building material dealers and big-box home centers, with retail pricing around 25 to 35 USD per 1-inch, 4x8 foot board. For investors, FOAMULAR NGX sits within Owens Corning's insulation segment, which management highlights as a key earnings contributor alongside roofing and composites. The product launch signals how building material manufacturers are responding to regulatory pressure and market demand for lower embodied carbon in construction, without sacrificing performance characteristics that contractors rely on.