Johns-manville

• Temporary closure notice effective APR 19, 2026 · 90 employees · filed FEB 10, 2026 · Closure Temporary — recorded; a temporary closure does not change the status
• Layoff notice effective NOV 3, 2024 · 100 employees · filed SEP 3, 2024 · Layoff Temporary — recorded; a layoff does not change the status
• Temporary closure notice effective SEP 25, 2023 · 54 employees · filed SEP 11, 2023 · Closure Temporary — recorded; a temporary closure does not change the status
• Temporary closure notice effective NOV 7, 2021 · 260 employees · filed SEP 7, 2021 · Closure Temporary — recorded; a temporary closure does not change the status
• Layoff notice effective JUN 1, 2020 · 13 employees · filed APR 20, 2020 · Layoff Temporary — recorded; a layoff does not change the status

Notices filed with the state under the federal WARN Act, as the state publishes them, collected by the WARN Act notices feed (CC BY 4.0). A notice records what the employer told the state; it is not by itself proof that the plant closed.

What they make

• insulation systems
• commercial roofing
• calcium silicate
• engineered products
• PVC Jacketing
• Fittings
• extruded polystyrene
• roofing membranes
• EPDM

NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026

Open positions

Openings read from Johns Manville Corporation’s own job board on Workday, last checked OCT 22, 2026. FactoryRegistry does not host applications — each title opens the posting where the company published it.

• Environmental Manager
  Willows CA

• Production Utility
  Innisfail Alberta
• Process Engineer
  Tucson AZ
• Sr. Product Manager- Roofing Systems
  Denver CO WHQ
• PVC Machine Operator
  Edison NJ
• Executive Office Coordinator
  Denver CO WHQ
• Sr. Automation Engineer
  Littleton CO JMTC
• Engineering Intern
  Spartanburg SC
• DC4 Receiving
  Hazleton PA
• Sales Representative- Upstate New York
  Work From Home NY · Remote
• Production Supervisor
  Cleburne TX

126 more on the company’s board

Where it is

Other plants nearby

No other listed facility within 40 km shares this one’s four-digit industry code, or this record has no coordinates to measure from.

Also at this address

1 other record shares this street address. Separate filings can describe distinct businesses on one site, or the same plant recorded by different agencies, so every record is kept rather than merged away.

Where this record comes from

4 sources hold this plant, and 7 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in AIR, AIRS/AFS, BR, CA-ENVIROVIEW, CEDRI, EIS, EPS, HWTS-DATAMART, ICIS, OSHA-OIS, RCRAINFO, TRIS · EPA site type STATIONARY.

• EPA ECHO compliance recordsOPERATING
  first seen APR 2023 · last seen AUG 2026
• EPA Facility Registry ServiceEXISTENCE
  Record 110000601340 · first seen OCT 2015 · last seen JUN 2026
• State WARN plant-closing and layoff noticesEXISTENCE
  first seen APR 2026 · last seen APR 2026
• EPA Toxics Release InventoryOPERATING
  first seen DEC 2023 · last seen DEC 2024

ALSO RECORDED ASJOHNS MANVILLE INC; JOHNS MANVILLE - MAIN PLANT SITE

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name

EPA: JOHNS-MANVILLE · OCT 2026

Street address

EPA: 5916 COUNTY ROAD 49 · OCT 2026

City

EPA: WILLOWS · OCT 2026

State

EPA: CA · OCT 2026

County (FIPS code)

EPA: 06021 · OCT 2026

Coordinates

EPA: 39.5361,-122.2614 · OCT 2026

Hazardous waste generator (RCRA)

EPA ECHO: LQG · OCT 2026