Special trade contractors primarily engaged in applying plain or ornamental plaster, including the installation of lathing and other appurtenances to receive plaster, or in drywall, acoustical, and building insulation work.
- Acoustical work-contractors
- Ceilings, acoustical installation-contractors
- Drywall construction-contractors
- Insulation installation, buildings-contractors
- Plastering, plain or ornamental-contractors
- Solar reflecting insulation film-contractors
- Taping and finishing drywall-contractors