Find the access side, label, actuator, fusible link, sleeve, blade area, or inspection point.
Check that permanent access remains reachable after walls, ceiling, insulation, hangers, and other trades are installed.
Verify the rated assembly detail, opening size, sleeve/firestop repair responsibility, and inspection requirement before continuing.
Ask foreman
In Fire/Smoke Dampers, Access Doors & Rated Assemblies, I’m looking at: What do I do when not checking wall/floor rating before penetration? What should I verify before I cut, drill, seal, cover, move, or install?
Do not
Do not treat damper or rated-assembly work like normal duct. Do not enlarge, patch, cover, or seal rated penetrations without the approved repair/detail.
