Johns Manville Asbestos: History & Claims
Johns Manville (JM) was the largest manufacturer of asbestos-containing building products and industrial thermal insulation in the world throughout the twentieth century. Facing hundreds of thousands of lawsuits from workers suffering from mesothelioma and asbestosis, Johns Manville filed for landmark Chapter 11 bankruptcy in 1982. The subsequent restructuring created the Manville Personal Injury Settlement Trust, the model for all modern toxic tort trusts.
The Industrial Empire of Johns Manville
Formed in 1901 through the merger of H.W. Johns Manufacturing Company and Manville Covering Company, Johns Manville dominated the American building materials market. The conglomerate operated the world's largest chrysotile asbestos open-pit mine—the Jeffrey Mine in Asbestos, Quebec—and manufactured thousands of distinct commercial products, from acoustic ceiling tiles and vinyl flooring to locomotive boiler insulation and marine pipe coverings.
During World War II, Johns Manville supplied over 90% of the thermal insulation utilized across the United States Navy's fleet of battleships, aircraft carriers, and destroyers. Products like 85% Magnesia pipe insulation, Marinite marine fireproof bulkhead panels, and Transite cement-asbestos pipes were installed across millions of public, military, and commercial buildings worldwide.
| Johns Manville Product Line | Asbestos Composition | Primary Industrial Use | Manufacturing Era |
|---|---|---|---|
| 85% Magnesia Pipe Lagging | 15% Chrysotile / Amosite, 85% MgCO3 | High-temperature steam boilers and pipe runs | 1910s to 1970s |
| Marinite Fireproof Panels | 35%–65% Amosite / Chrysotile | Shipboard bulkheads, furnace linings | 1930s to 1970s |
| Transite Cement Board & Pipe | 15%–30% Chrysotile | Water mains, sewer lines, exterior siding | 1929 to 1980s |
| Spintex / Micro-Flex Wrap | Chrysotile mineral blend | HVAC duct insulation, industrial furnaces | 1940s to 1975 |
| Colorbestos Shingles | 20%–35% Chrysotile | Exterior residential and commercial roofing | 1935 to 1972 |
The 1982 Bankruptcy and the Sumner Simpson Papers
By the late 1970s, investigative discovery in toxic tort litigation uncovered internal corporate correspondence—subsequently known as the Sumner Simpson papers. These documents revealed that corporate leadership at Johns Manville and Raybestos-Manhattan had documented the lethal pulmonary effects of asbestos as early as the 1930s, deliberately concealing medical findings from workers and suppressing independent scientific publications.
Faced with an overwhelming wave of personal injury lawsuits that threatened corporate liquidation, Johns Manville took the unprecedented step of filing for Chapter 11 bankruptcy protection on August 26, 1982. This landmark filing shocked the American financial sector because JM was a solvent Fortune 500 company, but chose bankruptcy to manage projected future tort liabilities totaling billions of dollars.
| Historical Milestone | Calendar Year | Significance in Asbestos Legal History |
|---|---|---|
| Merger of Johns & Manville | 1901 | Created the dominant global asbestos industrial conglomerate |
| Sumner Simpson Correspondence | 1935 | Proved corporate knowledge and deliberate concealment of asbestosis |
| Chapter 11 Bankruptcy Filing | 1982 | First use of bankruptcy reorganization to manage mass toxic tort claims |
| Creation of Manville Trust | 1988 | Court-approved trust fund established under Section 524(g) precursor |
| Berkshire Hathaway Acquisition | 2001 | Warren Buffett's holding company acquired JM as an asbestos-free entity |
The Manville Personal Injury Settlement Trust Today
Evolving out of the reorganization plan confirmed in 1988, the Manville Personal Injury Settlement Trust began operations as an independent legal entity designed to compensate current and future victims. The trust was funded with company stock, insurance proceeds, and a percentage of future company profits. The legal mechanism developed for Manville was later formally codified into federal law as Section 524(g) of the United States Bankruptcy Code.
Since its inception, the Manville Trust has processed and resolved over 1,000,000 individual claims, distributing more than $5 billion in compensation to victims of mesothelioma, lung cancer, and asbestosis. Today, Johns Manville operates as a wholly owned subsidiary of Berkshire Hathaway, manufacturing entirely asbestos-free fiberglass insulation, thermoplastic roofing, and engineered industrial products.
How to File a Claim with the Manville Personal Injury Trust
Confirm Medical Diagnosis with Pathology
Obtain certified medical records and biopsy pathology reports confirming an asbestos-related diagnosis, such as mesothelioma or asbestosis.
Document Exposure to Johns Manville Products
Collect employment records, union logs, or coworker affidavits establishing that you worked with or near JM products during your career.
Select Expedited or Individual Review
Choose between Expedited Review for rapid scheduled payouts or Individual Review to evaluate unique economic or medical circumstances.
Submit the Formal Claim Packet Electronically
File the completed claim package through the Manville Trust electronic portal along with all required medical and occupational exhibits.
Sign Release and Receive Payment
Upon claim approval, execute the liability release form to receive payment adjusted according to the trust's active payment percentage.
Frequently Asked Questions (7 Questions Answered)
Q1: Is Johns Manville still in business today?
Yes, Johns Manville operates today as an asbestos-free subsidiary of Berkshire Hathaway, producing fiberglass and commercial roofing.
Q2: What is the Manville Personal Injury Settlement Trust?
It is an independent trust created in 1988 under bankruptcy reorganization to pay financial compensation to asbestos injury claimants.
Q3: How many claims has the Manville Trust paid?
The Manville Trust has resolved over 1,000,000 claims and disbursed more than $5 billion in compensation to injured workers and families.
Q4: What were the Sumner Simpson papers?
They were internal executive letters proving that Johns Manville leadership concealed the deadly health hazards of asbestos since the 1930s.
Q5: What products made by Johns Manville contained asbestos?
Products included 85% Magnesia pipe wrap, Marinite ship panels, Transite cement pipes and siding, acoustic ceilings, and roofing shingles.
Q6: What is the current payment percentage of the Manville Trust?
The payment percentage fluctuates based on trust asset audits and claim volumes, typically calibrated around 0.5% to 5% of base values.
Q7: Can I file with the Manville Trust and other trusts simultaneously?
Yes, claimants can submit separate claims to multiple manufacturer bankruptcy trusts if they were exposed to products from multiple companies.
Final Thoughts & Key Takeaways
The legacy of Johns Manville remains central to understanding modern asbestos litigation, occupational disease rights, and corporate liability. The establishment of the Manville Trust pioneered the modern bankruptcy trust framework that continues to protect injured workers today. Victims exposed to historic Johns Manville products can file claims through the trust without entering traditional court litigation.