Other Vaults are built using a Steel Frame, that is delivered and dropped
into the ground. Our bomb shelters are custom concreted poured, steel
reinforced, with the most extensive countermeasures. Concrete can be
done with low attention, as if you are finishing a basement, while large
steel frames bring lots of suspicion. Steel Frames are also susceptible to
rust, usually being coated in a rubber /plastic that scratches off easily,
and exposes the bare metal to the elements.
1/4" Plate Steel
12" HI-STRENGTH CONCRETE with
5/8 Rebar Reinforcement
Radiation Shielding provided by 12" of Concrete provides
up to 8x as much as 1/4" of Plate Steel
Metals also may absorb the radiation and transfer it to occupants.