Office buildings usually have fake ceilings that connect every working space in the campus. This fake ceiling offers space for a variety of uses:
- Air conditioning system
- Different types of pipes
- Network cabling channels
The area above the fake ceiling is called a plenum if it offers air flow through it. On the other hand, a non-plenum area is one that contains air-supply-dedicated pipes that connect to the working space below so the air does not flow freely above the fake ceiling (i.e., it’s a non-circulating . . .
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