Decades refining fiberglass fiber chemistry and laminated shingle geometry for North American construction markets.
Company facts
About Owens Corning Building Materials
Since 1938 Owens Corning has engineered fiberglass insulation and asphalt roofing systems with documented R-value, wind uplift, and manufacturing traceability that specification writers can cite without guesswork. The organization employs roughly twenty-five thousand people and supports projects across more than thirty-one countries, yet the operating filter remains technical: will the published number survive plan review and field inspection?
Operating Facts Specifiers Ask For First
Employees across manufacturing, application engineering, and Preferred Contractor field support.
Markets with product availability and climate-specific thermal and roofing package guidance.
Roofing materials, thermal insulation, and foam board continuous insulation for envelopes.
Designated Duration grades tested for hail-prone jurisdictions seeking insurer-recognized impact resistance.
ENERGY STAR Partner status plus GREENGUARD Gold listings for indoor air quality packages.
Performance-Led Manufacturing, Not Brochure Claims
Owens Corning was founded in 1938 around fiberglass science and later expanded into laminated asphalt shingles and XPS foam boards that must hold declared R-value under compressive loads and wind cycles. By the 1970s–1980s energy-code era, published thickness charts became the language of attic and wall packages; today’s Preferred Contractor program (active across North American production housing) exists to keep warranty eligibility and shingle lot codes aligned when communities build in phases years apart.
Domestic and regional mills shorten lead times when tariffs or import delays threaten schedule; specialized facings or densities still ship from global plants when a project needs a SKU not produced locally. Logistics notes state that trade-off in days of lead time—not slogans. TruDefinition color boards still matter for HOA review, but every submittal packet we prepare leads with wind uplift, Class A fire classification, and thermal resistance inspectors verify first.
Scope limits we disclose up front: fiberglass batts do not replace air sealing at attic bypasses; XPS continuous insulation does not correct a roof that lacks net free ventilation area; and GREENGUARD Gold / recycled content percentage notes support indoor-air or LEED checklists without substituting for wind or fire listings. Supply reliability is handled with Preferred Contractor lot continuity windows, not open-ended availability promises.
Certifications & Quality Systems
- ENERGY STAR Partner
- GREENGUARD Gold
- ICC-ES Evaluated
- UL Listed assemblies
- ASTM C578 XPS foam board types
- Class A fire classification pathways (designated assemblies)
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