air-distributing acoustical ceiling

air-distributing acoustical ceiling

[′er di′strib·yəd·iŋ ə′kü·sti·kəl ′sēl·iŋ]
(building construction)
A suspended acoustical ceiling in which the board or tile is provided with small, evenly distributed mechanical perforations; designed to provide a desired flow of air from a pressurized plenum above.

air-distributing acoustical ceiling

A suspended acoustical ceiling in which the board, perforated metal, or tile is provided with small, evenly distributed mechanical perforations through the material; designed to provide a desired flow of air from a pressurized plenum above.