A brand new farm has been built in Ohio with 3 cage-free laying houses under one roof. The ventilation system is equipped with Flash air intake valves on both side walls. The special fins on the air intakes direct the air over the aviary systems to the middle of the barn. This prevents cold air blowing directly onto the animals. The Fortica® system has the right settings to optimize the air distribution in the barn as well as possible and can also easily switch to tunnel ventilation.