OWENS CORNING · NYSE: OC · PUBLIC COMPANY BRIEF · 13 SEP 2026
What Owens Corning makes, reinforces, and leaves behind.
Owens Corning has a real materials loop across insulation and glass. Its 2025 sustainability report says it consumed more than one billion pounds of recycled glass globally and reports third-party-certified recycled-content levels across Thermafiber, fiberglass insulation and other product families. The next decision is a named facility, cullet or external-waste stream, product specification and customer installation case where the recovery loop can be measured end to end.
TRI name-collision corrected · 1 genuine facility of 3 raw matchesEvidence grade B · strong at corporate/segment level, facility level required manual correctionMasonite acquisition adds a fourth platform
Owens Corning
Public company brief
Public materials brief.
FY2025 revenue
$10.10B
31 Dec 2025 · SEC XBRL, Current
Genuine TRI facility lead
1 of 3
Waxahachie, TX · 2 raw matches are a different company
Core platforms
4
Roofing, Insulation, Composites, Doors
Masonite acquisition
~$3.9B
Announced 2024 · Reported
Sector tags
Building materials
Construction & resource materials
Company flow
Public evidence, arranged around the physical system rather than the corporate org chart. Owens Corning's defining structural fact for this brief: a 2024 U.S. TRI parent-name match collided on the shared word “Corning” and pulled in two facilities that belong to a completely unrelated company. That collision, and how to read past it, is the subject of this brief's bespoke tab.
01 · MATERIALS IN
Recycled glass, asphalt & resins
Recycled glass cullet into fiberglass melt, asphalt/bitumen and reinforcing mats for shingles, and resins/binders for composites are public category signals.
Public category signal
02 · MAKE
Roofing, insulation & composites platforms
Owens Corning describes three core manufacturing platforms (Roofing, Insulation, and Composites) plus a newly acquired Doors platform (Masonite).
Asphalt roofing shingles, fiberglass batts/rolls/spray foam, glass-fiber reinforcements sold into other manufacturers' products, and (as of the Masonite deal) interior and exterior doors.
Company described
04 · WASTE OUT
One genuine listed-chemical stream, correctly matched
A single verified 2024 TRI facility, Owens Corning Insulating Systems LLC in Waxahachie, TX, reports hydrochloric acid management. Two other raw matches under the shared “Corning” name are NOT Owens Corning; see the platforms tab.
Name-collision corrected
What is public now
Business segmentsRoofing (asphalt shingles); Insulation (fiberglass batts, rolls, spray foam); Composites (glass-fiber reinforcements sold to other manufacturers); Doors (Masonite, added 2024, 2025)
Ticker & identifiersNYSE: OC · CIK 0001370946
Sector tagsPackaging, construction & resource materials · Construction & building materials
Public plant signalExactly 1 genuine U.S. TRI facility lead (Waxahachie, TX). Two additional raw parent-name matches are a false positive from a different company. See below.
Decision entryA named product platform (roofing, insulation, composites, or doors) is the workable starting point, not the parent brand, and not the raw TRI parent-match list
What the public record tells us
Evidence-integrity signal: The 2024 TRI parent-name match string for “Owens Corning” reads “CORNING INC; MASONITE CORP; OWENS CORNING; OWENS CORNING INC; OWENS CORNING INSULATING SYSTEMS LLC.” Two of those tokens, CORNING INC and, downstream of it, HEMLOCK SEMICONDUCTOR OPERATIONS LLC, belong to Corning Incorporated (NYSE: GLW), an unrelated glass/ceramics/optical-fiber company headquartered in Corning, NY. They are not Owens Corning facilities. Only the row naming Owens Corning Insulating Systems LLC is a genuine match.
Structural event: Owens Corning completed a real, well-documented acquisition of Masonite International Corporation (a door manufacturer) in a deal valued at roughly $3.9 billion, announced in 2024. This is the correct explanation for “MASONITE CORP” appearing in the same TRI parent-match string: a genuine subsidiary relationship, not a matching error. Current integration status and segment reporting should be verified against the latest 10-K.
Revenue signal: FY2025 revenue of $10,103,000,000 (period ended 2025-12-31) is flagged “Current” in SEC XBRL data. A cost-of-revenue figure of $4,812,000,000 also present in the same source set is dated 2017-12-31 and flagged “Missing or stale.” It is not used anywhere in this brief and should not be treated as a current cost figure.
Regulatory and certification signals
Regulatory watchlistEPA Clean Air Act (fiberglass and asphalt manufacturing NESHAP rules), TRI, RCRA, state building-energy codes, EPR-adjacent construction-waste rules in some jurisdictions
Certification familiesISO 14001, ENERGY STAR partner, GREENGUARD, third-party recycled-content verification where relevant to a specific product
How to use this viewConnect each requirement to the product, plant, material, jurisdiction, and effective date before making a transition claim
Innovation and recovery signals
Material innovationRecycled-content fiberglass insulation, sustainable roofing R&D, and composite material development for lightweighting applications are stated public focus areas
Recovery pathwaysRecycled glass cullet into fiberglass melt, reclaimed-shingle use in asphalt paving, and composites end-of-life recovery (notably wind-turbine-blade material) are directional public categories
Commercial lensCullet quality specification, shingle-recycling collection logistics, and blade-material recovery all require facility- or program-specific evidence before a recycled-content claim is used
Manufacturing platforms & the Corning name-collision
This is the tab that makes evidence integrity, not just product description, the point: a name-matching algorithm confused two unrelated companies because they share the word “Corning.” This tab lays out Owens Corning's real platform structure, then documents the false positive so it never gets treated as fact downstream.
Evidence-integrity note · read before citing any TRI figure
Owens Corning's real segment structure
Roofing
Asphalt shinglesResidential and commercial roofing products; long-standing core segment, publicly described
Company described
Insulation
Fiberglass batts, rolls & spray foamFiberglass insulation is the product family most associated with Owens Corning's brand, including its historic pink-fiberglass identity
Company described
Composites
Glass-fiber reinforcements for other manufacturersSold into wind-turbine blades, automotive components, and construction materials made by other companies, a B2B materials-science business rather than a finished consumer product
Company described
Doors (new)
Masonite door manufacturingAdded through the Masonite International Corporation acquisition, announced 2024, valued at roughly $3.9 billion; a genuine, newly acquired subsidiary, not a matching artifact
Reported · verify current integration status
The false positive: two facilities that are NOT Owens Corning
Raw TRI match
Location / TRI ID
2024 chemical
Actual owner
CORNING INC
Midland, NC · 28107CRNNG14556
Hydrochloric acid, 1,680,215 lb
Corning Incorporated (NYSE: GLW), a separate, unrelated glass/ceramics/optical-fiber company headquartered in Corning, NY
(Linked via Corning Inc ownership group)
Hemlock, MI · 48626HMLCK12334
Hydrochloric acid, 1,443,541 lb
Hemlock Semiconductor Operations LLC, a polysilicon-manufacturing joint venture historically tied to Corning Incorporated's ownership group (Dow Corning heritage), also not Owens Corning
Neither of these two facilities is an Owens Corning site. Both were pulled into the raw multi-parent match string purely because the matching algorithm collided on the shared word “Corning.” Do not cite either facility's TRI figures, location, or chemical profile as Owens Corning data in any downstream document, pitch, or model.
The one genuine match: Waxahachie, TX
Owens Corning Insulating Systems LLC, Waxahachie, TX (TRI ID 75165WNSCRHWY35, hydrochloric acid, 1,098,589 lb in 2024) is the single facility in the raw match set whose entity name literally says “Owens Corning.” This is the only candidate lead this brief treats as a genuine Owens Corning facility. See the Waste, water & climate tab for how this figure is used.
Why this matters commercially
This is exactly the kind of false positive Material Transition's evidence rules exist to catch. A shared surname between two unrelated public companies is enough to corrupt a parent-name match, and a downstream user who trusts the raw match string without inspecting entity names would present a wind-turbine-adjacent semiconductor JV and an unrelated optical-fiber company's plant as Owens Corning facilities. Any conversation about Owens Corning's manufacturing footprint should start from the Waxahachie facility and the four platforms above, never from the raw parent-match string.
Products leaving the system
Four platforms, publicly described: three long-standing manufacturing businesses plus one newly acquired door-manufacturing subsidiary.
Company described
Roofing: asphalt shingles
Residential and commercial asphalt roofing shingles and related accessories, one of Owens Corning's longest-standing product lines.
Core product · company described
Insulation: fiberglass batts, rolls & spray foam
Fiberglass insulation products for residential and commercial building envelopes; the product family most publicly associated with the Owens Corning brand.
Core product · company described
Composites: glass-fiber reinforcements
Glass-fiber reinforcement materials sold to other manufacturers, used in products such as wind-turbine blades, automotive components, and construction materials.
Core product · B2B materials-science business, company described
Doors: Masonite (newest addition)
Interior and exterior doors, added to Owens Corning's portfolio through the Masonite International Corporation acquisition (~$3.9B, announced 2024).
Reported · verify current integration status
What this product mix means for a materials-transition conversation
Consumer-facing vs. B2BRoofing, insulation, and (new) doors are sold toward builders and consumers; composites is a materials-science business sold into other manufacturers' bills of materials
Decision entryA named product platform and grade (e.g. a specific insulation R-value line, a shingle product, or a composite fiber grade) is the workable starting point, not the parent brand
Segment names and the scope of Masonite's integration shift with each 10-K. Confirm current segment definitions in the latest filing before quoting an exact product-mix percentage.
Materials entering the system
Category-level material families connect Owens Corning's public platform descriptions to its manufacturing inputs. Recycled glass cullet is the standout circularity signal in this sector.
Public category signals
Material family
Feeds which platform
Public signal
Recycled glass cullet
Insulation (fiberglass melt)
Genuine circularity input, public category signal
Virgin silica sand & batch chemicals
Insulation, Composites (fiberglass melt)
Public category signal
Asphalt / bitumen & reinforcing mats
Roofing
Public category signal
Resins & binders
Composites, Insulation
Public category signal
Wood, glass, hardware & coatings
Doors (Masonite)
Reported/directional · newly acquired segment
Financial scale context
FY2025 revenue is $10,103,000,000 for the period ended 2025-12-31, flagged “Current” in SEC XBRL data (CIK 0001370946). A cost-of-revenue figure of $4,812,000,000 present in the same cited public sources is dated 2017-12-31 and flagged “Missing or stale.” It is not a current cost figure and is not used anywhere in this brief. Pull the current 10-K to confirm any cost-of-revenue or margin figure.
Material transition focus
The practical comparison set: recycled-glass-cullet percentage by insulation plant, reclaimed-asphalt-shingle input into paving, and composite fiber-grade substitution for lightweighting, each evaluated at the plant or product-grade level, not the parent brand.
Reported residual, water & climate signals
2024 TRI data gives a facility-lead, single-chemical, U.S.-only view, and for Owens Corning, it required a manual correction first. Only one of the three raw matches is a genuine Owens Corning facility.
Corrected parent-name TRI match plus company-reported ESG data
Waxahachie, TX: the one genuine 2024 TRI facility
Owens Corning Insulating Systems LLC, Waxahachie (TRI ID 75165WNSCRHWY35) reports hydrochloric acid management of 1,098,589 lb in 2024. Its entity name literally contains “Owens Corning,” making it the only facility in this brief's TRI match set treated as a genuine candidate lead.
Hydrochloric acid is a plausible fiberglass-manufacturing process chemical; exact release, transfer, and recovery figures by category require pulling the facility's own TRI submission rather than the parent-match summary used here.
Two facilities excluded as false positives
Corning Inc, Midland, NC (1,680,215 lb hydrochloric acid) and Hemlock Semiconductor Operations LLC, Hemlock, MI (1,443,541 lb hydrochloric acid) also appeared in the raw parent-name match, but both belong to Corning Incorporated (NYSE: GLW), not Owens Corning.
Do not attribute either facility's tonnage, location, or chemical profile to Owens Corning. See the platforms tab for the full explanation of this name collision.
Climate and recycled-content commitments
Owens Corning publicly discloses greenhouse-gas reduction targets and recycled-content goals for its insulation and roofing businesses as part of its sustainability reporting. Treat any specific target percentage, baseline year, or recycled-content figure as company reported and unverified here until pulled from the current sustainability report.
Recycled glass cullet: a genuine circularity input
Recycled glass cullet is a real, industry-standard input to fiberglass manufacturing, giving Owens Corning's Insulation platform a genuine circularity angle distinct from a company merely stating a recycling aspiration. Exact cullet percentage by plant is not itemized in this source set.
Scope limitation
TRI parent-name matching only reaches U.S. facilities filed under a matched corporate name, only for listed chemicals like hydrochloric acid, and, as demonstrated here, can produce false positives when two unrelated companies share a word in their name. It does not capture total plant waste, water withdrawal, or emissions for Owens Corning's full footprint, and it does not extend to non-U.S. sites.
Regulatory watchlist, building codes & innovation signals
Fiberglass and asphalt manufacturing sit under standard EPA air-emissions rules; building-energy codes are the demand-side driver for insulation, and a growing set of state EPR-adjacent construction-waste rules is the newest watch item.
Jurisdiction
Framework
Trigger / status
United States (federal)
EPA Clean Air Act: NESHAP/MACT rules for mineral wool, fiberglass, and asphalt processing
Air-emissions standards specific to fiberglass melting and asphalt shingle manufacturing; facility-level applicability not adjudicated here
United States (federal)
TRI, RCRA
Facility-level chemical reporting; only one U.S. facility lead is a genuine Owens Corning match in this source set
United States (state/local)
Building energy codes (IECC and state adoptions)
The primary demand driver for insulation R-value requirements; a direct commercial tailwind for the Insulation platform
United States (state)
EPR-adjacent construction and demolition (C&D) waste rules
Emerging in select states; relevant to shingle and building-material disposal and reclaimed-material use, not yet a uniform national framework
Voluntary and state-level programs route reclaimed shingles into paving mixes; program scope and volume are not itemized in this source set
Regulatory applicability has not been adjudicated per site, product, or jurisdiction here. This is a watchlist, not a legal conclusion.
Certification families in play
ISO 14001ENERGY STAR partnerGREENGUARD
Certificate number, site scope, and current expiry are not verified here. Certification-family relevance does not prove an active, in-scope certificate for a named plant or product.
Innovation signals
Recycled-content fiberglassPublic sustainability messaging positions higher recycled-glass-cullet content as a stated design direction for insulation
Sustainable roofing R&DDirectional public signal; specific commercialized formats not itemized in current source set
Composites for lightweightingGlass-fiber reinforcement development for wind, automotive, and construction lightweighting is a stated public focus area
Doors platform integrationReported/directional · Masonite's own product-innovation programs are newly part of Owens Corning's portfolio, not yet itemized here
Highest-leverage public opportunities
Each hypothesis connects a public materials, platform, or recovery signal to a specific transition pathway, ranked by fit given Owens Corning's real (corrected) footprint.
Recycled glass cullet sourcing transparency
Screening candidate
Document plant-level recycled-glass-cullet percentage in fiberglass melt so insulation buyers can cite a specific, sourced recycled-content figure rather than a sector-average estimate.
Plant-by-plant cullet percentage disclosure
Cullet quality and contamination specification
Supply-chain documentation for a recycled-content claim
Asphalt shingle recycling / reclaimed-shingle paving use
Qualification open
Identify named reclaimed-asphalt-shingle (RAS) programs and paving-industry offtake relationships before proposing a new collection or recovery pilot.
Glass-fiber composite blade material is a well-known end-of-life recovery challenge across the wind sector; a named recovery pathway or partner is required before proposing an offtake.
Blade material composition and grade
Decommissioning volume and timeline by region
Recovery or repurposing processor match
Waxahachie facility engagement
Qualification open
The one verified genuine TRI facility lead is a workable starting point for a plant-level conversation about hydrochloric acid management and recovery, provided it is not confused with the two false-positive sites.
Facility-level TRI submission review
Process-chemical recovery or substitution options
Confirm the facility is correctly identified before any outreach
Priority opportunity
Start with the recycled-glass-cullet transparency gap, not a new material claim. Owens Corning's Insulation platform already runs on a partly circular glass input; the highest-leverage move is making that existing loop, plant by plant, documented and comparable, rather than pitching materials transition as a new idea. Recommendation: Pilot after evidence closure. Name one plant, one cullet percentage, and confirm the Waxahachie facility identification before proceeding.
Evidence register. The sources below are the public record used for this brief. Company claims, facility matches, directional hypotheses and unresolved qualification questions are kept separate. A source does not establish ownership, operating control, customer status or a supply agreement by itself.
Public source trail
Every fact in this brief traces to one of these sources, labeled by evidence strength and scope.
S1 · U.S. EPA TRI
2024 U.S. TRI Basic Data Files. Facility, parent, chemical, and management quantities. Name-collision caveat: the raw parent-name match for “Owens Corning” returns a mixed set: “CORNING INC; MASONITE CORP; OWENS CORNING; OWENS CORNING INC; OWENS CORNING INSULATING SYSTEMS LLC,” because the matching algorithm collided on the shared word “Corning.” Two facilities in that raw set (Corning Inc, Midland, NC and Hemlock Semiconductor Operations LLC, Hemlock, MI) belong to Corning Incorporated (NYSE: GLW), an unrelated company, and are NOT Owens Corning. Only Owens Corning Insulating Systems LLC, Waxahachie, TX, is a genuine match. Read this source with that correction applied, not as a raw list.
SEC XBRL data resolves FY2025 revenue at $10,103,000,000 for the period ended 2025-12-31, flagged “Current” (CIK 0001370946). A cost-of-revenue figure of $4,812,000,000 in the same source is dated 2017-12-31 and flagged “Missing or stale,” not used in this brief. Pull the current 10-K to confirm any other financial figure.
Public reporting on Owens Corning's acquisition of Masonite International Corporation, a door manufacturer, in a deal valued at roughly $3.9 billion, announced in 2024. Reported and directionally reliable; verify current integration and segment-reporting status in Owens Corning's own filings.
Owens Corning's own sustainability/ESG reporting: climate targets, recycled-content goals for insulation and roofing, and water-stewardship descriptions.
International Energy Conservation Code (IECC) and state adoption records: the regulatory driver behind insulation R-value demand referenced in the regulatory tab.
Corning Incorporated (NYSE: GLW) public filings and facility descriptions, included here solely to support the name-collision correction in S1, not as a source about Owens Corning.
Owens Corning, official report PDF. Added in the September 2026 evidence refresh. The source supports the bounded company-specific signal above and does not establish a buyer, supply agreement, ownership, operating control or customer qualification by itself.
Owens Corning, official sustainability site. Added in the September 2026 evidence refresh. The source supports the bounded company-specific signal above and does not establish a buyer, supply agreement, ownership, operating control or customer qualification by itself.
Owens Corning, official report PDF. Added in the September 2026 evidence refresh. The source supports the bounded company-specific signal above and does not establish a buyer, supply agreement, ownership, operating control or customer qualification by itself.
Scope: public TRI facility-lead data (corrected for a confirmed parent-name collision), SEC XBRL revenue data, and well-established public knowledge of Owens Corning's platform structure and the Masonite acquisition. TRI is a single-chemical, parent-name-matched, U.S.-only view and produced a demonstrated false positive here. Entity names, not raw parent-match strings, were used to determine which facilities are genuinely Owens Corning. Climate and recycled-content claims are company-reported and unverified at the certificate or plant level; every opportunity is a directional hypothesis pending plant-level evidence.
