TacticScaleWhat Owens Corning Does & How It Makes Money (OC)
Updated October 2026 · reflects Owens Corning's latest reported financials
Maker of roofing, insulation, doors and glass fiber building materials. It makes and sells roofing, insulation, door and glass reinforcement products to distributors, home centers, lumberyards, retailers, homebuilders, contractors and installers, who use them in new construction and remodeling.
How Owens Corning makes money
It makes and sells roofing, insulation, door and glass reinforcement products to distributors, home centers, lumberyards, retailers, homebuilders, contractors and installers, who use them in new construction and remodeling.
What Owens Corning does
Owens Corning is a building products manufacturer headquartered in Toledo, Ohio, and incorporated in 1938. It reports three segments: Roofing (laminate and strip asphalt shingles, roofing components, oxidized asphalt), Insulation (thermal and acoustical batts, loosefill and spray foam, pipe insulation, and technical insulation under the PINK, FIBERGLAS, FOAMULAR, FOAMGLAS and Paroc brands), and Doors (residential interior and exterior doors and door components). It also manufactures glass fiber reinforcements. Its customers are distributors, home centers, lumberyards, retailers, homebuilders, contractors and installers, so demand is tied to residential and commercial construction and remodeling activity in the U.S., Europe and Asia Pacific.
Products & services
- Asphalt roofing shingles and components
- Owens Corning PINK fiberglass insulation
- FOAMULAR and FOAMGLAS insulation
- Paroc stone wool insulation
- Residential interior and exterior doors
- Glass fiber reinforcements (fibers and mats)
What is Owens Corning worth?
On an owner-earnings DCF, Owens Corning's most-likely value is about $287 versus a recent price near $114 (152% below fair value). But TacticScale only calls a stock undervalued when the price sits below its conservative no-growth floor (~$160) with a margin of safety — so the honest verdict here is “Deeply discounted.” Fair value earns its keep only at the extremes, not in the wide middle.
On the financials alone, $114 is below even the no-growth floor ($160); the market's discount — expectations and sentiment beyond the numbers — is pricing in ≈ -4.0%/yr. A bargain only if that pessimism is overdone.
Analysis, not advice. Fair value is a margin-of-safety estimate from a deterministic owner-earnings DCF, not a price target or recommendation. See the full breakdown →
Related companies
Corning (GLW) · O-I Glass (OI) · Carlisle Companies (CSL) · Installed Building Products (IBP) · Apogee Enterprises (APOG)