⚓ U.S. Navy — Rating Exposure Profile
Boiler Technician (BT) — Asbestos Exposure
Last updated July 11, 2026
Boiler Technicians operated and maintained the steam-generating boilers that powered the Navy's surface ships. Boiler rooms — known as fire rooms — contained some of the densest concentrations of asbestos insulation anywhere on a ship, making BTs one of the most at-risk ratings for asbestos-related disease.
Spaces & Work Areas
Boiler Technician (BT) sailors regularly worked in:
- Boiler rooms (fire rooms)
- Main steam line runs
- Uptakes and exhausts
- Fuel oil service spaces
How BTs Were Exposed
Every surface of a 1200-psi naval boiler was covered in asbestos block insulation. BTs climbed inside boilers for cleaning and repairs, disturbed asbestos-laden refractory brick, and replaced asbestos gaskets at steam line connections. The combination of heat, confined space, and disturbed insulation created extremely high fiber concentrations.
U.S. Navy ships built before approximately 1980 used asbestos-containing insulation, gaskets, and fireproofing materials throughout their engineering plants and throughout the ship. Sailors in the Boiler Technician (BT) rating were among those most regularly in contact with these materials.
Ship Types Where BTs Served
Boiler Technician (BT) sailors were assigned across multiple ship types. Asbestos was used throughout all of these vessel types during the pre-1980 construction era:
VA Claims & Legal Options
The VA has acknowledged that BTs who served on steam-propulsion vessels faced occupational asbestos exposure. Document every ship you served aboard. Ship-specific product records (which brands of boiler block insulation were used) can support trust-fund claims in addition to VA disability.
Two Paths: VA Disability & Asbestos Trust Funds
- VA disability compensation — Monthly benefit for service-connected asbestos-related disease. Requires a diagnosis, evidence of in-service exposure (your rating and ship records), and a nexus statement linking the two.
- Asbestos trust fund claims — Lump-sum payments from bankruptcy trusts funded by asbestos product manufacturers. Requires identifying specific products used aboard your ship class. Multiple trusts may apply to a single claimant.
These paths are not mutually exclusive — many veterans pursue both.
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Asbestos.cam is an informational resource, not a law firm. The above is general information, not legal advice. Consult a qualified attorney for guidance on your specific situation.
Frequently Asked Questions
Why were Boiler Technicians at such high risk for asbestos exposure?
Naval boilers operated at 1,200 psi and 950°F, requiring thick asbestos block insulation on every surface. BTs entered boiler casings for maintenance, replaced asbestos gaskets and refractory bricks, and worked in fire rooms where insulation dust was a constant presence. These were enclosed, high-temperature spaces with limited ventilation.
Are there asbestos trust fund claims available for Boiler Technicians?
Yes. Multiple asbestos trust funds — including those from Johns-Manville, Owens Corning, and Pittsburgh Corning — cover claimants who were exposed to products used in naval boiler rooms. An attorney who specializes in Navy asbestos claims can identify which products were used on your ship class and file the appropriate claims.
My father was a BT and died of lung cancer. Can the family file a claim?
Yes. Mesothelioma and asbestos-related lung cancer claims can be filed on behalf of a deceased veteran's estate or surviving dependents. Trust fund wrongful-death claims and VA Dependency and Indemnity Compensation (DIC) are the two main paths. Act promptly — statutes of limitations apply.