Facility managers often receive noise complaints. A department head might report that confidential conversations in their office are audible in the hallway. The most common reaction is to purchase acoustic panels or foam to put on the walls. These materials typically improve the room’s acoustics but rarely address privacy. The conversations remain just as audible…

Acoustic privacy is often viewed as a wall issue. People assume thicker partitions or upgraded gypsum will stop confidential conversations from spreading. Wall construction matters, but the overhead space is often the real vulnerability. The ceiling plenum connects rooms in ways that are not visible from below, and speech moves through that space more easily…