The ventilation system is heavily influenced by a time-honored construction technique found in traditional Spanish Haciendas. This ingenious system is based upon a practice of orienting rooms in ways that utilize a "night flush." What this accomplishes is to naturally cool the interior and exchange stale air for fresh by directing cooler (less humid) nighttime air into the interior of the house. Once inside, cool air pushes stale air out through exit vents, which, are located in the floor on the far sides of each room, to create a natural vortex of rotating air that ventilates the rooms. A secondary benefit of directing stale air down through the floor is that the crawl space beneath the house gets ventilated in the process.