Auditorium Curtains — Asbestos Exposure Crosswalk

What This Equipment Is

Auditorium curtains — specifically the fire safety curtain (also called the asbestos curtain, fire curtain, or safety curtain) — were a standard feature of school auditoriums, theaters, opera houses, civic assembly halls, and movie houses built or renovated between approximately 1900 and the late 1970s. Many state and local building codes required theaters and auditoriums with proscenium-arch stages to install a fireproof curtain that could be dropped between the stage and the audience to contain a backstage fire.

The most common fire-resistant material specified for these curtains was woven asbestos cloth — sometimes called “fireproof curtain cloth” or “theater curtain asbestos.” The cloth was woven from chrysotile asbestos fibers and used either alone or in combination with other fire-resistant treatments.

Beyond the fire curtain itself, decorative stage curtains, side curtains (legs), and overhead borders were sometimes coated or backed with asbestos-containing fire-retardant treatments to meet flame-resistance codes.

Where These Curtains Were Used

  • K-12 school auditoriums and gymnasium-cafeterias (cafetorium) with stages
  • University performing arts centers and lecture halls
  • Public school theaters and assembly halls
  • Municipal theaters, opera houses, and civic auditoriums
  • Movie theaters with proscenium stages (typically older theaters built before the multiplex era)
  • Lodge halls, churches with stages, and community centers

The phrase “behind the asbestos curtain” once was a common reference to backstage staffing — a measure of how universal these curtains were in entertainment venues of that era.

This is a school/theater-specific reference. For other related products:

Manufacturers Named in Theater-Curtain Litigation

Public asbestos litigation records identify several categories of companies in cases involving fire-rated theater and auditorium curtains:

Asbestos cloth weavers and converters:

  • Johns-Manville — asbestos cloth and theatrical fire curtain stock
  • Raybestos-Manhattan — asbestos cloth and braided products
  • Garlock — woven asbestos products
  • H.K. Porter — woven asbestos products

Stage equipment and curtain installers:

  • J.R. Clancy — stage rigging including fire curtains
  • Peter Albrecht — stage equipment
  • Vincent Lighting and other theatrical equipment houses

Fire-resistant coating manufacturers:

  • U.S. Mineral Products
  • W.R. Grace — fire-resistive treatments

Trust Funds That May Apply

  • Manville Personal Injury Settlement Trust
  • Raybestos Manhattan asbestos claims (under various trust mechanisms)
  • H.K. Porter Asbestos Trust

See full trust-fund directory →

Trades and Workers Most Exposed at Auditorium Curtains

The exposure population for asbestos auditorium curtains is somewhat different from heavy industrial settings:

  • School maintenance staff — replacing, cleaning, or removing curtains during renovations
  • Stage crew and rigging technicians — handling, repairing, and replacing curtains
  • Theater carpenters — installation and modification of stage equipment
  • Demolition and abatement workers — curtain removal during school renovations
  • Theater volunteers and stage parents — incidental exposure during school plays and rehearsals (lower intensity, longer cumulative duration)
  • Teachers and students — bystander exposure where curtains were aged, damaged, or being handled in disturbed condition

Curtain handling that caused fiber release — particularly when curtains were old, frayed, or being lowered and raised through normal use — has been documented as a source of asbestos exposure in school and theater environments.

Jobsites in the Network Documenting School Auditoriums

Compiled from publicly filed asbestos litigation records, fire-code archives, and industry-publication histories. Product identifications and company references reflect what has been alleged or documented in publicly filed litigation. This page does not constitute a finding of liability against any company. This information is not legal advice; consult a licensed attorney about your specific situation.