Which additional features are required for an acoustical partition beyond gypsum boards and studs?

• A. Properly caulked with sealant, full height, and a resilient channel
• B. Painted with matte finish and installed at half height
• C. Equipped with a metal fire door
• D. Coated with a reflective paint

Answer: (A)

To improve sound isolation in an acoustical partition, you need features that address both air leakage and structural transmission beyond just gypsum boards and studs. Properly caulking joints with sealant blocks sound from leaking through gaps, full-height construction ensures there are no horizontal openings that can carry sound, and a resilient channel decouples the drywall from the studs to reduce vibration transfer through the framing. Together, these elements create a continuous, decoupled barrier that enhances the partition’s sound performance. The other options don’t impact acoustics in the same way: paint finish or half-height installation doesn’t prevent sound transfer; a metal fire door is a separate assembly and not part of the partition itself; reflective paint has no meaningful acoustic benefit.