I'm not an expert but I am interested in the wisdom of regional and historical architecture for this sort of thing. Look at the old buildings where you are. How did they do it?

(You might get less out of this if you're in a place that boomed with air conditioning, but still there are lessons to learn from the indigenous architecture[1] of your region.)

[1] https://www.amazon.com/Native-American-Architecture-Peter-Na...