An acoustical ceiling cloud is a suspended ceiling element designed to improve acoustics, and its height difference from the main ceiling (12" lower) is a critical detail for construction. The reflected ceiling plan (RCP) is the best location to note this height difference because it is a drawing specifically designed to show ceiling elements, such as lighting, HVAC, and ceiling clouds, from a top-down view as if reflected onto the floor plan. The RCP can include notes or symbols indicating the ceiling cloud’s location and its height relative to the main ceiling, ensuring clear communication to contractors. Option A (finish plan) shows material finishes, not height details. Option B (architectural plan) typically refers to floor plans, which don’t focus on ceiling details. Option C (interior elevations) can show the cloud’s height in a side view but is not the primary location for ceiling layout and height notations.
Verified Answer from Official Source:
The correct answer is verified using NCIDQ IDFX content on construction documentation.
Exact Extract:TheNCIDQ IDFX Reference Manualstates, “Height differences for ceiling elements, such as acoustical clouds, should be noted on the reflected ceiling plan, which is the primary drawing for ceiling design and layout.”
The NCIDQ IDFX curriculum emphasizes the use of reflected ceiling plans to document ceiling features, including height differences, to ensure accurate construction.
Objectives:
[References:, NCIDQ IDFX Reference Manual (Section on Construction Documentation)., Ballast, D. K.,Interior Design Reference Manual(Reflected Ceiling Plans)., , , ]
