Clayton’s documented sites are commercial and government buildings rather than plants, which changes who was exposed: building-trades contractors and in-house maintenance staff, not production workers.
Pierre Laclede Center is an office complex. The Clayton courthouse and the St. Louis County Justice Center are the county government buildings.
Large buildings of this era carry asbestos in sprayed fireproofing on structural steel, boiler and mechanical-room insulation, pipe covering on heating and chilled-water distribution, floor tile and its mastic, and acoustic plaster. The highest-exposure work is renovation and demolition, which disturbs material that is otherwise undisturbed — so the exposed trades include insulators, pipefitters, electricians, carpenters, drywall and flooring workers, and building engineers.
Few work histories involve a single site. Tradesmen moved between plants on shutdowns and turnarounds, so an exposure history is normally several employers and several premises rather than one.
Secondary exposure: “take-home” risk
Fibres carried home on work clothes exposed spouses and children who laundered them — a pattern documented in Missouri cases, and one reason a diagnosis in someone who never held an industrial job still warrants investigation.
Missouri filing deadlines
Two deadlines run independently. Personal injury is five years under Mo. Rev. Stat. § 516.120, reaching these claims through subdivision (4). Wrongful death is three years after the cause of action accrues under Mo. Rev. Stat. § 537.100.
When the five years start is set by a different statute: under Mo. Rev. Stat. § 516.100 a claim accrues “when the damage resulting therefrom is sustained and is capable of ascertainment.” That is usually read from the diagnosis, but it is an objective test decided on the facts and it can fall earlier. How Missouri asbestos claims work →