I have a question regarding natural ventilation openings for underground enclosed car parking (6000 m2, sprinklered, one story). Having said that I considered a ventilation ducted system for exhaust air (300 liters/min/m2 minimum) how many are natural ventilation openings? To minimize these surfaces is it possible to adopt a ventilation system that "push" air in car parking balancing extraction air?
Many thanks for your cooperation
Mirco from Italy