You may want to google an old episode of This Old House. They showed an older home that had the state of the
art ventilation system that was over a hundred years old. It seem that when they built the house the builder put in a dome that had NG jets ringed around a dome. In the summer they would open the doors and ignite the gas ring. The dome had windows at the top that were opened prior to lighting the gas jets. The heat from the ignited gas caused a convection flow through the door and out the dome top. Worked well.
Just a thought....
I would think that having a copula or a top story containing operation windows would suffice. Even here in Texas, there are certain times of the year that I can open the southern facing windows and doors as well as the northern windows and doors and get good ventilation.