Plenum Leaking


Reduction in plenum pressure when subfloor is used as an air plenum.  

  • Missing edge trim
  • Lateral instability
  • Vertical instability
  • Improper sealing the cutouts
  • Using stringers without gaskets
  • Not using cove base at perimeter and column locations to seal floor


  • Reduction in static pressure
  • Improper balance of air delivery around sensitive equipment