ventilated ceiling

ventilated ceiling

A ceiling containing a multiplicity of air outlets covering a significant part of the ceiling area and acting as a whole (not as individual units).
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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A special rail car was fitted with a spring-cushioned bed and ice chests below with a ventilated ceiling. To reach the cottage from the resort, a mile-long spur was built overnight using 300 volunteer railroad builders and calcium lights.
Steam and Diesel
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