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Why do farms have such tall roofs?
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Don't humans need airflow? Why aren't our houses that tall
We have it, usually.
You'll run into it in different ways though. Apartments rely pretty much purely on whatever environmental controls are in place. You move the air mechanically, along with whatever heat and cooling goes on. Some have windows as well.
Houses, it's turned into the same thing a lot of places. Particularly with new builds, but even those have ways to manage air flow for the house itself, when the area calls for it.
Older houses? Plenty of air flow. Windows, higher ceilings (in warmer climates), floorplans that allow for doors to be open to the outside (but screened) on opposite ends, etc. There's a lot of ways to manage living space airflow. Plus attics for more general purposes than comfort and environmental management of living spaces.
You'll see higher houses here in the south a lot because higher ceilings gave you better relief from heat. We also tend to have attic space that's meant to keep hot air moving out and away. Up north, as I understand it, it's more about balancing summer and winter needs, whereas we didn't historically have severe enough winters to worry as much about the balance, even here in the mountains. I don't doubt there's equivalents for desert building, coastal, etc.
Back before AC and central heating, pretty much every design of houses had a solution for controlling how air moved.