01 / Occupational profile
Your BU occupational profile
Hand-arm vibration from powered tools
Common occupational factor
Sustained use of jackhammers, circular saws, and concrete vibrators exposes Builders to hand-arm vibration, a recognized occupational-health concern in construction trades.
Silica and construction-material dust
Common occupational factor
Concrete cutting, masonry work, and demolition generate silica-containing dust, a documented respiratory hazard in construction occupations.
Heavy lifting and repetitive construction demands
Common occupational factor
Carrying lumber, block, and rebar, along with repeated kneeling and overhead work during framing and structural assembly, is a defining physical demand of the rating.
Powered-tool and equipment noise
Common occupational factor
Jackhammers, saws, generators, and heavy equipment used on construction sites are recognized hazardous-noise sources.
Deployment-dependent expeditionary construction exposures
Location-dependent
Expeditionary NMCB construction details may add burn-pit proximity, sand and dust, and higher physical-demand tempo depending on the deployment location and era; stateside base-support construction carries a different, generally lower exposure profile.
02 / Your service
What did you actually do?
Your MOS is the starting point. Your actual assignment, era, equipment, location, and duties determine which parts of the occupational history are relevant. Use the Evidence Builder below to select your actual duties and see records that may corroborate them.
Builders frame, pour concrete, lay masonry, and perform general carpentry and structural work using both hand tools and powered equipment such as circular saws, jackhammers, and concrete vibrators. Deployed Seabee detachments build and repair roads, bunkers, buildings, and infrastructure, often under compressed timelines and austere conditions, while stateside duty involves base-support construction and training exercises. Concrete and masonry work generates silica-containing dust, and framing and demolition work involves sustained hand-arm vibration from powered tools. The physical demands include repetitive lifting of building materials, prolonged kneeling and overhead work, and working in confined or elevated positions during structural assembly.
Exposures are strongly deployment-dependent: a Builder assigned to a Naval Mobile Construction Battalion (NMCB) on an expeditionary construction detail faces materially different exposure than one working stateside base-support projects between deployments.
Duties that may vary by assignment
- Framing, carpentry, and general structural construction
- Concrete forming, pouring, and finishing work
- Masonry and block-laying construction
- Use of powered tools including circular saws, jackhammers, and concrete vibrators
- Deployed expeditionary construction projects: roads, bunkers, and base infrastructure
- Heavy lifting and carrying of lumber, block, rebar, and building materials
- Prolonged kneeling, overhead, and elevated-position work during structural assembly
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Military Occupational Evidence Builder
Based on what you actually did in the military, what records might document it? Select only what applied to you. No name, file number, contact details, free text, or upload. Nothing is saved or sent.
Military service
Navy · BU Builder (Seabee)
For another specialty, open its guide from the MOS library. A job code alone does not establish individual duties or exposure.
Era(s) of service
Deployments
Already have a VA decision?
Your Evidence Builder identifies records that may document your service history. If VA has already decided your claim, the next question is different: what did VA accept, what did VA reject, and why?
Request a free decision review03 / Corroboration
Building your occupational history
Records matter because they can connect a job title to an individual's actual work and circumstances.
Hand-arm vibration from powered tools
Records that may corroborate it
- · Evaluations describing specific construction tasks and tool use
- · Occupational-health and industrial-hygiene surveillance records where retained
- · Sick-call entries documenting hand, wrist, or upper-extremity complaints
Limit: Tool-vibration exposure does not by itself establish a specific neurologic or vascular hand condition; a current diagnosis and a supporting medical opinion are still required.
Silica and construction-material dust
Records that may corroborate it
- · Evaluations and command histories describing concrete or masonry work assignments
- · Occupational-health surveillance and respirator-fit records where retained
- · Deployment records documenting expeditionary construction projects
Limit: Dust exposure does not by itself establish a current respiratory diagnosis; pulmonary testing and a supporting medical opinion are still required.
Heavy lifting and repetitive construction demands
Records that may corroborate it
- · Evaluations describing construction-detail assignments and tasks
- · Sick-call and physical-therapy records for spine, knee, or shoulder complaints
- · NMCB deployment records documenting construction-project tempo
Limit: Typical construction demands do not prove a specific joint or spine injury occurred; a current diagnosis and evidence connecting it to service are still needed.
Powered-tool and equipment noise
Records that may corroborate it
- · DD 2215/2216 audiograms and DOEHRS-HC records
- · Hearing-conservation program enrollment
- · Evaluations describing construction-equipment operation
Limit: Noise exposure alone does not establish a current hearing-loss disability under 38 CFR § 3.385 or supply the nexus opinion.
Deployment-dependent expeditionary construction exposures
Records that may corroborate it
- · Deployment orders and NMCB detachment records
- · Airborne Hazards and Open Burn Pit Registry participation
- · Post-Deployment Health Assessment / Reassessment (DD 2796 / DD 2900) entries
Limit: The rating does not itself prove a deployment location; presumptive status depends on documented location, dates, and a listed condition.
04 / Evidence standard
What your MOS can — and cannot — establish
May help document
Work performed, circumstances of service, consistency of an alleged exposure, and the nature or duration of duties where supported by individual records.
Does not automatically establish
A diagnosis, medical causation, severity, percentage, presumption, or entitlement to service connection.
05 / Medical evidence
Conditions that may be relevant to the occupational history
This is not a list of conditions to claim. A veteran's actual diagnosis and individual service record determine relevance; occupational evidence is not medical causation.
Wrists/Hands +
Carpal tunnel syndrome and other repetitive-strain hand conditions
Why the occupation may matter: Sustained use of vibrating powered tools such as jackhammers and saws is a recognized mechanism for hand and wrist nerve symptoms in construction trades.
Records and clinical evidence: Current diagnosis with nerve-conduction findings and documentation of powered-tool use during construction duty.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Lumbar spine +
Lumbar strain, degenerative disc disease
Why the occupation may matter: Heavy material lifting and repetitive kneeling and bending during construction work load the lumbar spine cumulatively.
Records and clinical evidence: Current imaging and range-of-motion findings, in-service treatment records, and an opinion addressing cumulative loading.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Knees +
Patellofemoral pain, meniscal pathology, degenerative arthritis
Why the occupation may matter: Prolonged kneeling during framing, flooring, and concrete-finishing work is a recognized mechanical stressor for the knees.
Records and clinical evidence: Current diagnosis, measured range of motion, and documentation of construction-detail assignment.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Shoulders +
Rotator cuff pathology, impingement
Why the occupation may matter: Repeated overhead work during framing and structural assembly places cumulative strain on the shoulders.
Records and clinical evidence: Current diagnosis with imaging or examination findings and documentation of overhead construction duty.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Respiratory +
Asthma, chronic bronchitis, and PACT Act presumptive conditions
Why the occupation may matter: Silica and construction-material dust, along with deployment-related airborne hazards, present plausible respiratory irritant mechanisms.
Records and clinical evidence: Current pulmonary testing, occupational or deployment exposure documentation, and a medical opinion addressing the specific exposure.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Hearing +
Tinnitus and sensorineural hearing loss
Why the occupation may matter: Powered construction tools and equipment are documented hazardous-noise sources.
Records and clinical evidence: Audiometry meeting 38 CFR § 3.385 thresholds or a lay account of persistent tinnitus, plus construction-duty and audiogram records.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Skin +
Contact dermatitis and other skin conditions
Why the occupation may matter: Contact with concrete, cement dust, and construction chemicals is a documented irritant exposure in the trade.
Records and clinical evidence: Treatment records showing skin findings during or after service and a medical opinion linking the pattern to construction-material contact.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
06 / Exposure record
ILER and toxic exposure
For applicable exposure-related claims, VA may review the Individual Longitudinal Exposure Record (ILER) and a toxic exposure risk activity (TERA) memorandum along with deployment and occupational records. An ILER entry does not automatically establish exposure or service connection.
07 / After a decision
Why a BU claim may still be denied
An exposure finding is not the same as a grant. These are examples from the researched guide, not predictions about a particular case.
VA may accept
A duty or event consistent with the service record
But may deny
A diagnosis, medical relationship, or rating element
Record to examine
Decision findings, service and private treatment records, examination rationale, and medical opinions.
Musculoskeletal claims denied for lack of in-service treatment
Builders often worked through joint and back pain during compressed deployed construction schedules; an opinion relying mainly on a silent treatment record without addressing lay accounts of repetitive construction work may be inadequate under Barr v. Nicholson.
Respiratory claim denied for insufficient exposure documentation
Silica-dust exposure is not always systematically monitored on deployed construction sites, so claims can be denied when the record does not clearly document the frequency or intensity of concrete and masonry work.
Presumptive framework does not automatically apply
A deployed NMCB assignment does not automatically place a claim within the PACT Act presumptive list; that depends on the documented deployment location, dates, and a listed condition.
Hand and wrist claims denied for lack of a clear vibration-exposure nexus
Carpal tunnel and similar claims are sometimes denied when the medical opinion does not adequately address sustained powered-tool vibration as a contributing mechanism, relying instead on generic causation statements.
Rating level does not reflect flare-ups or repetitive-use loss
Knee and shoulder ratings based on a single range-of-motion measurement may understate functional loss during flare-ups from construction work, contrary to 38 CFR §§ 4.40, 4.45 and Correia v. McDonald.
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BU questions
Does being a BU automatically qualify me for carpal tunnel or joint benefits?
No. The rating supports the in-service physical-demand and vibration-exposure element. A grant still requires a current diagnosis and a medical opinion connecting it to documented construction duties.
Does deployed Seabee construction duty prove I was exposed to burn pits?
No. Burn-pit exposure depends on the specific deployment location and dates, not the rating. NMCB deployment orders and DD-214 remarks establish that separately.
What if I never sought treatment for hand numbness or joint pain during service?
That is common in construction trades. Your own account of onset is competent evidence, and evaluations describing tool use and construction assignments, along with post-service treatment, can help establish continuity.
Does it matter whether I served stateside or deployed with an NMCB?
Yes. Deployed construction detachments generally carry a higher and more concentrated exposure profile than stateside base-support projects, so deployment records help establish the specific tempo and conditions of your service.
Can I claim a respiratory condition just from working with concrete?
You need a current diagnosed respiratory condition and a medical opinion connecting it to documented dust exposure; working with concrete alone is not a diagnosis.
What tools or tasks matter most for my claim?
Powered tools that produce sustained vibration (jackhammers, saws) and any tasks generating concrete or masonry dust are the most relevant for the exposure argument; describing those tasks specifically strengthens the record.
What records best show my actual construction duties?
Evaluations describing specific tasks and tools used, NMCB deployment and detachment records, occupational-health surveillance records where retained, and hearing-conservation audiograms.
Sources and legal references
General education only; not legal or medical advice. Oakridge Claims is a private business, not affiliated with or endorsed by VA. Nothing here establishes a representative-client relationship or guarantees a result. Free accredited VSO help is available.