Asbestos Exposure by Navy Ship Class
Not all Navy vessels carried identical asbestos risk. The amount and concentration of asbestos insulation was directly tied to the vessel’s propulsion system, size, and the number of boilers it operated. Steam-powered combatants — carriers, battleships, cruisers, and destroyers — were the most heavily insulated. The following table maps vessel classes to their documented exposure profile:
| Ship Class / Type | Era | Propulsion | Asbestos Risk | Highest-Risk Spaces |
|---|---|---|---|---|
| Aircraft Carriers (CV/CVN) pre-1975 | WWII – 1970s | Steam | Critical | Boiler rooms (8–12 boilers per ship), main engine rooms, fire rooms, hangar deck fire suppression |
| Battleships (BB) | WWII | Steam | Critical | Boiler rooms (up to 12 boilers), fire rooms, main engine rooms, secondary battery handling rooms |
| Heavy & Light Cruisers (CA/CL) | WWII – 1960s | Steam | Critical | Boiler rooms, engine rooms, all steam piping throughout hull |
| Destroyers (DD/DDG) pre-1975 | WWII – 1970s | Steam | Critical | Compact boiler and engine rooms; highly concentrated exposure due to small compartment volume |
| Destroyer Escorts (DE) | WWII | Steam / diesel | High–Critical | Boiler rooms on steam-powered DEs; all engineering spaces |
| Submarines (SS/SSN) pre-1975 | WWII – 1970s | Diesel-electric / nuclear | High | Diesel engine spaces, battery compartments, nuclear plant insulation, all piping systems |
| Ammunition Ships (AE) | WWII – 1970s | Steam | High | Boiler and engine rooms; crew berthing pipe runs |
| Tankers / Oilers (AO/AOE) | WWII – 1970s | Steam | High | Boiler and engine rooms; cargo pump room steam insulation |
| LSTs / Amphibious Ships | WWII – 1970s | Diesel | Moderate–High | Engine rooms, exhaust insulation, troop berthing pipe runs |
| Destroyer Tenders (AD) | WWII – 1970s | Steam | Critical | Boiler rooms plus extensive repair shop insulation — tenders worked on every system of every ship they serviced |
Boiler Room Exposure — The Most Dangerous Space Aboard Any Ship
Among all shipboard compartments, the boiler room was documented as the single most hazardous location for asbestos exposure. On steam-powered naval vessels, boiler rooms were insulated more heavily than any other compartment: every surface of every boiler casing was lagged, every steam drum was wrapped, every associated pipe was covered, and every valve was packed with asbestos-containing material. Temperatures required that the insulation be thick — often six inches or more on major components — and applied in multiple layers.
Industrial hygiene measurements taken in boiler room spaces during the litigation era documented fiber concentrations that exceeded contemporary OSHA permissible exposure limits by factors of 10 to 100 times during routine maintenance. Cutting away old, degraded insulation to access a valve or replace a gasket created short-duration exposures that were orders of magnitude higher still. Sailors who stood daily watch in boiler rooms on steam-powered vessels accumulated lifetime exposure doses comparable to those documented in insulation workers — a population with the highest mesothelioma rates ever recorded.
What made the boiler room uniquely severe was not only the density of insulation but the enclosed environment. Unlike a shipyard, where some dilution of ambient air occurred, a ship’s boiler room was a sealed compartment with minimal ventilation. Fibers stirred into the air by any disturbance of the lagging — a maintenance task, a drill, a repair — had no means of escape and remained in the breathing zone of everyone present for hours. Documentation from cases including Forrest Senter v. Owens-Corning Fiberglass and similar maritime asbestos suits established this exposure profile in federal court.
Exposure by Navy Rating (Job)
A sailor’s risk was directly tied to their rating — the Navy’s job classification system. Ratings that placed men in boiler rooms and engine rooms on a daily basis carried the highest lifetime asbestos burden. Ratings with incidental access to those spaces carried elevated but lower risk. Administrative and topside ratings had minimal below-deck exposure.
| Navy Rating | Primary Duty | Asbestos Risk | Exposure Route |
|---|---|---|---|
| Boiler Technician (BT) | Operates and maintains ship’s boilers and all associated steam systems | Critical | Direct: daily boiler room work, hands-on maintenance of all lagged surfaces |
| Machinist’s Mate (MM) | Engine room machinery: turbines, reduction gears, main condensers | Critical | Steam pipe insulation, turbine casing lagging, all engine room maintenance |
| Engineman (EN) | Diesel engines on amphibious vessels, small craft, and auxiliary systems | High | Engine room insulation, diesel exhaust lagging, auxiliary steam system pipe insulation |
| Hull Technician (HT) | Pipe repair, welding, damage control equipment maintenance | Critical | Cutting through and replacing pipe insulation throughout the ship to access and repair systems |
| Damage Controlman (DC) | Firefighting, flooding control, emergency repair | High | Asbestos cloth patches, pipe insulation disturbance during drills and actual emergency repair |
| Electrician’s Mate (EM) | Electrical distribution, motors, switchgear throughout ship | High | Worked in all insulated spaces to route cable and service equipment adjacent to lagged pipe runs |
| Gas Turbine Systems Technician (GSM) | Gas turbine engines on post-1970s vessels | Low–Moderate | Some legacy asbestos materials in older gas turbine applications; lower risk than steam ratings |
| Gunner’s Mate (GM) | Weapons systems, ordnance handling | Low–Moderate | Fireproof materials in magazines and gun mounts; limited pipe insulation exposure |
| Sonar Technician (ST) | Sonar equipment operation and maintenance | Low | Electronic spaces with limited pipe run exposure; low ambient fiber concentration |
| Yeoman / Administrative ratings | Office duties, administration, communications | Low | Minimal below-deck exposure; building-level ambient fiber only |
The WWII Shipbuilding Legacy — A Wave of Diagnoses Still Arriving
The United States produced approximately 4,500 warships during World War II — a rate that peaked at roughly one ship every 10 days from facilities running around the clock. This industrial mobilization was one of the most extraordinary manufacturing feats in history, and it was accomplished almost entirely with asbestos insulation. Every destroyer, cruiser, carrier, and battleship that rolled out of American shipyards was insulated with asbestos pipe covering, block insulation, and boiler casing material applied by hand by workers who had no knowledge of its health consequences.
The men who built those ships in the yards, and the young sailors who crewed them in the Pacific and Atlantic, are now in their 70s, 80s, and 90s. Mesothelioma’s latency period of 20 to 50 years means that WWII-era shipboard exposure is still producing new diagnoses today — men whose first and most intense asbestos exposure occurred in a destroyer’s boiler room in 1944 may have received their mesothelioma diagnosis in 2005 or 2015. The diagnoses are not slowing; they are simply shifting to a slightly younger cohort as the WWII generation gives way to those who served during the Korean War and Cold War buildups of the 1950s and 1960s.
The wartime rush also meant that safety precautions — minimal in any peacetime industrial setting — were entirely absent. There was no time to develop alternatives, no regulatory framework requiring warnings, and no industrial hygiene infrastructure of any kind aboard vessels or in shipyards. Workers were told asbestos was harmless, or told nothing at all.
Specific Navy Ships with Documented Asbestos Exposure
Certain Navy vessels appear repeatedly in asbestos litigation because of their scale, their shipbuilder’s legal history, or their class characteristics. The following ships are among the most frequently cited in maritime asbestos cases:
| Ship | Class | Status | Notable Asbestos Notes |
|---|---|---|---|
| USS Kitty Hawk (CV-63) | Kitty Hawk-class carrier | Decommissioned 2009 | Built at New York Shipbuilding, Camden, NJ; heavily cited in Avondale and NY Ship asbestos litigation |
| USS Forrestal (CV-59) | Forrestal-class carrier | Scrapped 2014 | First supercarrier; enormous boiler plant; extensive Unibestos and Kaylo pipe covering documented in litigation |
| USS New Jersey (BB-62) | Iowa-class battleship | Museum ship, Camden NJ | Eight Babcock & Wilcox boilers; thousands of pounds of asbestos insulation throughout engineering spaces |
| USS Missouri (BB-63) | Iowa-class battleship | Museum ship, Pearl Harbor HI | Same Iowa-class design as New Jersey; site of Japanese surrender ceremony; boiler room asbestos extensively documented |
| USS Enterprise (CVN-65) | Enterprise-class carrier | Decommissioned 2012 | First nuclear carrier; nuclear plant used some asbestos in early designs; non-nuclear support systems conventionally insulated with asbestos; involved in crew asbestos litigation |
| USS Coral Sea (CV-43) | Midway-class carrier | Scrapped 2000 | Constructed and repeatedly refitted at Avondale Shipyards, Louisiana; major site of Avondale asbestos litigation resulting in substantial verdicts |
| USS Oriskany (CV-34) | Essex-class carrier | Artificial reef, Gulf of Mexico | All 24 Essex-class carriers were heavily insulated; Oriskany decommissioned and scuttled after asbestos abatement; Essex-class is the most litigated class in naval asbestos history |
Every one of these vessels represents a class of ships, not a single hull. If you served aboard any vessel of the same class as those listed above, your exposure profile is substantially similar.
VA Benefits for Navy Veterans with Mesothelioma
The Department of Veterans Affairs provides several distinct benefit programs for Navy veterans diagnosed with mesothelioma or other asbestos-related diseases. These benefits are separate from and in addition to any civil legal claims:
VA Disability Compensation
Service-connected mesothelioma is rated at 100% disability — the highest rating available — because it is a terminal cancer. The 100% rating results in the maximum monthly compensation payment, which as of 2024 exceeds $3,700 per month for a veteran with a dependent spouse. Compensation is not taxable.
Dependency and Indemnity Compensation (DIC)
If a veteran dies from service-connected mesothelioma, the surviving spouse and dependent children are eligible for DIC payments — a monthly benefit paid to the surviving family. DIC is available regardless of whether the veteran filed a disability claim before death.
VA Healthcare
Veterans enrolled in the VA healthcare system receive cancer treatment at VA medical facilities at no cost. VA cancer care has improved substantially in recent years and is available in most major metropolitan areas.
Special Monthly Compensation (SMC)
Veterans with particularly severe disability — including many terminal mesothelioma patients — may qualify for Special Monthly Compensation, which supplements the standard 100% disability rate with additional monthly payments based on the nature of the disability.
No Deadline to File
Unlike civil lawsuits, VA disability claims have no statute of limitations. A veteran can file a claim at any point after diagnosis — or a surviving family can file a DIC claim after the veteran’s death — without concern about filing deadlines. Claims should be filed promptly to maximize the period of benefit receipt, but there is no deadline that bars a claim.
How to File
File VA Form 21-526EZ (Application for Disability Compensation and Related Compensation Benefits). You will need: your DD-214 (Certificate of Release or Discharge from Active Duty); service records documenting your assignment to a vessel and, if possible, your rating (job classification); and medical records documenting your mesothelioma diagnosis. A VA-accredited claims agent or mesothelioma attorney can assist with the filing at no charge.
VA Benefits vs. Asbestos Lawsuits — Can I Pursue Both?
Yes — and most attorneys advise pursuing both simultaneously. These are entirely separate legal systems targeting different parties.
VA claims hold the federal government responsible for the service member’s disability arising from hazardous service conditions. The government compensates veterans through the benefit system as a matter of policy, not as an admission of wrongdoing in court.
Civil claims — trust fund claims and lawsuits — target the private manufacturers of asbestos insulation products who were paid to supply those products to the Navy. Companies like Owens Corning, Pittsburgh Corning, Philip Carey, Babcock & Wilcox, and dozens of others sold asbestos products to the Navy knowing of the health hazard and failed to warn the men who used those products. Courts have repeatedly held that the government contractor defense does not immunize these manufacturers from liability to the veterans who were harmed by their products.
Filing a VA disability claim does not bar civil lawsuits or trust fund claims. Receiving VA compensation does not reduce the amount recoverable in civil claims. The two tracks are completely independent. Trust fund claims are typically the fastest civil route — they require no trial, proceed administratively, and can pay out within months of filing. A mesothelioma attorney experienced in maritime claims can manage both tracks simultaneously at no additional cost to the veteran.
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Frequently Asked Questions
Steam-powered capital ships — aircraft carriers, battleships, and cruisers — contained the largest absolute quantities of asbestos because of their massive boiler and engine plants. Battleships of the Iowa class (New Jersey, Missouri, Iowa, Wisconsin) each had eight Babcock & Wilcox boilers requiring thousands of pounds of asbestos insulation per boiler. Aircraft carriers of the Essex, Midway, and Forrestal classes had similarly enormous boiler plants, with up to twelve boilers per ship. However, in terms of relative exposure risk, destroyers were often more dangerous: their engineering spaces were far more compact, concentrating the same asbestos fiber in a fraction of the air volume. Any sailor who stood watch in a boiler room or engine room on any of these vessels accumulated significant lifetime exposure.
Yes. Mesothelioma caused by military service asbestos exposure qualifies for VA disability compensation at the 100% disability rating — the highest available. The VA recognizes that asbestos exposure in shipboard engineering spaces is a well-documented service-connected hazard. To file, you need your DD-214, service records showing assignment to an asbestos-exposure-prone rating or vessel, and medical documentation of your mesothelioma diagnosis. There is no deadline to file VA claims — they can be filed at any time after diagnosis. Contact a VA-accredited claims agent or mesothelioma attorney; most handle VA claims alongside civil claims at no additional charge to the veteran or family.
Yes, in most cases. Nuclear propulsion eliminated steam boilers for main propulsion, but nuclear-powered vessels still had conventional steam systems for auxiliary services, steam catapults (on carriers), and non-nuclear plant machinery — all of which used standard asbestos pipe insulation. The nuclear plant itself used specialized asbestos materials in some early reactor designs, and the non-nuclear support systems were insulated the same as any conventional steam vessel. Veterans who served in the engine spaces of nuclear-powered vessels built before 1975 — particularly the USS Enterprise (CVN-65), the Bainbridge (CGN-25), the Long Beach (CGN-9), and early Los Angeles-class submarines — may have valid asbestos exposure claims. The Enterprise in particular has been the subject of crew asbestos litigation.