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That sounds like a good plan. And do you have window/door just in the front or are there other "vents". My main questions are around the inner home humidity and the roof beams eventually rotting. It will still outlive you, I'm just asking by how many years 😅
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Good question.
The whole house is actually a small hill so the surroundings is dirt that will suck all the water from rain.
But when I dug it, I let also a small space with a layer of small rocks between the sirt and the earthbags. That rocks layer act like a siphon letting all the rain water to flow faster down below all those bags. Very small quantity of water will come over them.
Yes, there is humidity, especially during nov - april when is raining and snowing heavily.
But the earthbags are a very good barrier. I've tested all these years building the walls with them and observing closely how the water is "not) dripping inside.
Also as you can see on top of those earthbags walls, I start to make the cans-walls, that are also another layer of protection.
On top of the can-walls is coming the plaster, the last level of protection. And then a smooth thin layer of impermeable paint.
The roof will be GREEN - the strong beams will sustain 3 levels of coverage:
The roof also have a small inclination to let the water flow out.