Q&A for How to Build a Bomb Shelter

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If I put in air-ducts, how do I prevent them from being a weak point in the bomb shelter?

Community Answer

You put the inlet (and outlet or exhaust) far away from the shelter and connect that duct to just a hole or its own room. Then, a separate pipe is used to draw air from that inlet chamber. Yes, a very unlucky indirect hit can kill your air system, but you'll have plenty of time (hours) before the air runs out or you should be able to turn your outlet into a temporary (days) inlet.

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Question

How do you keep radiation out of shelter?

Peyton Schmiege

Community Answer

The walls would be thick enough to block radiation, but if you fear a slow seepage of radiation, you can add a layer of lead in the walls and ceiling. Install a HEPA air filtration system if your bomb shelter is intended to withstand nukes.

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How much would it cost to build the whole shelter?

Peyton Schmiege

Community Answer

It could range anywhere from $30,000 to over $100,000 depending on materials.

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Question

What if the materials in the bomb shelter start rotting or decomposing?

Peyton Schmiege

Community Answer

It is mostly concrete, so it should last a long time, but if it begins to decay, you can dig down and resurface the concrete.

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Question

I am thinking of building this. How much will it cost? (I am a mother of 5.)

Peyton Schmiege

Community Answer

You would probably need more space so it might cost anywhere from $75,000 to $150,000 depending on how it is engineered. If you are dedicated to making it smaller and cheaper, it could cost only $45,000.

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