Which statement best describes a Directly Fastened Ceiling?

• A. Directly fastened to structural members; Lath & Plaster (OLD) or Drywall (NEW)
• B. Hung from structural members with a grid of cells suspended by wires
• C. Creates a void space that allows fire to travel
• D. Is hung from wires from the ceiling framing

Answer: (A)

Directly fastened ceilings are finished by attaching the ceiling material directly to the structural members, without a suspended grid. In practice, that means plaster applied to lath (old construction) or drywall fastened directly to the bottom of the joists or beams (new construction). Because there’s no grid or dropped ceiling, there isn’t an open void space above the finish for air, smoke, or fire to travel through as a plenum.

This is why the statement describing direct fastening is the best fit: it accurately defines how the ceiling is attached and what materials are used, distinguishing it from suspended-ceiling systems that rely on a wire grid and create a hollow space above the ceiling. The other options describe ceilings hung from a grid or wires and the void that such systems create, which is not characteristic of a directly fastened ceiling.