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I have always dreamed of owning an underground house. I am curious about the price difference of building underground vs. above ground.
From my understanding the biggest problems come from condensation forming on the walls due to temperature difference between wall and inside of house. This can be fixed by insulating the wall both on the outside and inside. Usually by using special fiberglass insulating panels on the outside, and maybe foam to seal concrete from inside of the house.
I also want your ideas on the issue of condensation, as well as ventilation systems for building underground in a cold climate, such as Colorado.
Don't need to worry about building codes and stuff, I have specialists for that.
The other thing that worries me is how to calculate rough pressure loads for the "roof". Lets say the house is 4ft under the dirt, a 10ft x 10ft room. Maybe I want it to also not cave in if a heavy mac truck happens to roll over it?
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Can I safely replace a 15 amp circuit breaker with a 20 amp breaker?
I have two bedrooms sharing one 15A circuit for some reason. With a window air conditioner and a computer in one room, and another window air conditioner and computer in the other room all running, the breaker will eventually trip. If any one of those devices is left off, it won't trip. Lights do not dim. Oregon state code requires at least 14 ga wire outside kitchens and bathrooms, so I would assume that's what's been used for most outlets. Not that I'm trying to draw 15A from a single outlet, it's spread out.