[Family] is not upper bounded by a roof, ceiling or floor element. This can result in incorrect adjacencies and voids in the analytical model. Please ensure that Upper Limit and Limit Offset for [Room] is set correctly. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
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