I have some low rise apartments that have the typical exhaust: dryer, bathroom, and kitchen. The apartments also has a rated ceiling with a drop ceiling so the supply duct does not have to penetrate the rated ceiling. However the exhaust does need to penetrate it, and the exits the building...
So after years of working through the trenches, in 4 different engineering firms over 11 years. I finally made it to an assistant department head for the mechanical department doing HVAC design. I am still in the trial period picking up additional responsibilities as I transition out of design...
