Most efficient way to build a storm shelter
My wife has decided we need a place to go in case of a tornado or hurricane. Our house is a slab-on-grade, so no basement, and the the main floor is very open so not even a good place to hunker down there.
I’ll be building a workshop/garage in the near future, so that’s the obvious place to put it. I can think of two options. One is to excavate and have a partial basement under part of the workshop. The other is to build a reinforced room above grade. It seems to me that the latter option would be cheaper and easier, but I’m really just guessing. One major factor to consider is that we have a high water table; it was 3 feet below grade where we built the house, though it does vary over the whole property. That will make excavating and building below grade more complicated and expensive, not to mention waterproofing the structure.
What’s the general consensus between these two options, and are there any others I haven’t thought of?
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