Inspiring! Thanks for starting this thread, Cassie.
"Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has."-Margaret Mead "The only thing worse than being blind, is having sight but no vision."-Helen Keller
R. Han, it does not have to be dry. There are cob houses in some of the most wet climates in the world like in the UK. Those houses are 300+ years old too. When you build in a wet climate make sure that the rock wall at bottom of your cob wall is high enough not to get rain splashing up on it from the ground and make sure your roof overhang is at least 18” or half a meter at a minimum. That’s called your hats and boots. Those can be at big as you need them. I built a 50 foot by 50 foot pole barn over my cob house. So my overhangs are 6ft, 9ft, 10ft, and 15.5ft. Adding bio polymers like horse poop, fermented cactus juice, wheat germ paste, and in your most extreme areas adding boiled linseed oil will give durability and water resistant to your exterior plaster. Good luck.
Here are a few recent pics of my cob house. Enjoy.
Oops, double posted same stuff, so I edited it to have more pics. My bad. Here is kind of an ugly building, but it’s purpose is beautiful. This is the worlds first underground peyote germination facility. I was hired on by Simon Gonzalez to help on this build for a Native American church as a DEA sanctioned conservation project for the purpose of keeping this medicine available for its adherents and future generations of natives because climate change, habitat loss, and regulation have hurt the peyote ecosystem.