This Ancient Adobe Home Cools For $0 in 110°F Desert Heat. Why Didn't You Know About It?

There's a church in New Mexico finished in 1816. Mud and straw, four feet thick at the base, no cooling system, ever. On an August afternoon when it's 104 outside, the middle of that building is in the seventies. Nothing is running. Nothing has ever run. Two hundred and ten summers. First, the honest answer to my own title. Adobe is not banned. It's in the building codes by name. New Mexico has its own adobe code. There are whole new adobe subdivisions that were permitted, inspected, financed and insured like any other house. The real reason you didn't know is much more boring and much more useful, because you can plan around a form and you can't plan around a villain. In this video: Why adobe is BAD insulation, and why that's not the point Lag: a twelve-hour delay that puts the afternoon's heat on the wall at midnight The limit nobody mentions — Phoenix nights above 90 mean the wall never resets The two-minute test that tells you whether mass works where you live The five parts a house needs, because a thick wall with a thin roof still cooks Water, cement stucco, and seismic: the three ways adobe actually fails Why the energy code's R-value table can fail a wall that demonstrably works Compressed earth block, and the honest cost of a two-foot wall in floor area And who should actually build one, plus the cheaper answer if you just want a cool house Everything's in The Owner-Built Home — link on the channel description. Tell me where you are and what your overnight low actually does in July. That single number decides whether any of this is for you. #adobe #passivecooling #offgrid #newmexico #earthbuilding #naturalbuilding #thermalmass #desertliving #homebuilding #sustainablebuilding #ownerbuilder #architecture #darrinstevenson #theownerbuilthome #buildingscience