Pictures of a below ground steel and concrete vault room and safe room with 30 yds of concrete over steel vault. Stair well with motion detector operated lighting, grating stairs, back-up sump pump located beneath vault, grating stairwell, handrails, Very heavy duty 2" Steel safe room door with 3 hour fire rating with triple deadbolts (entry door).
Storm Shelter room and vault room with cable, dsl, electric, wood grain floors. Storm Shelter and Vault Room is separated with a double steel sheets with 1/4" thick steel channel reinforcement for door opening, 8" thick concrete wall with reinforcement bar and structural support (from top during pour) fitted with a Ft. Knox Vault Door. Membrane in wall in vault room behind finished sheetrock helps control any moisture. The wall is as follows..wall configuration >.Paint, textured sheetrock, moisture membrane, airspace, steel wall, 14" of concrete..edge of excavation hole> There is an airspace formed above steel vault under concrete to help control any condensation. Inside vault room ceiling there is a 6" airspace with insulation also.
Below Ground Vault Diagrams Page Here>
"The Walls of a Concrete Vault Room will hold moisture like a sponge."
The use of a steel inner vault with concrete shell will minimize any moisture from entering into the vault room. A de-humidifier is used to control any minor moisture that may enter the room from the stairwell. This is a fire free design and may be used as a storm shelter if needed. Room for fold down beds or chairs in first room. Guns or Valuables in the back vault room.
Both rooms have 2 recessed lighting fixtures with 2 lights apiece. Venting had protective debris gaurds built in and is internal and is not visible from the above ground level. Steel vault is set on a 14" concrete slab, and anchored.Gasket between steel structure and Slab. Sump hole is located below grating below stair well. Concrete is poured completely over the top and sides after anchoring is completed. This will secure vault and keep it from floating.
These below ground vaults may be located beneath a new home prior to construction or next to a house and a slab or new room may be added over the top. All venting is located in such a way as not to allow outside air to enter into the gun room. Sizes vary.. this one is a little over 32 ft. long with the stairwell. Broadband, phone, electrical, recessed lighting, sump pump, steel core shelter with 12" of concrete over all sides and top, safe room door with 4 locks, vault door, wood flooring, protected venting, interior moisture barrier, stairwell with grating and 2 handrails and a few other options about $30,000. U.S.
Note: The cost per square ft of a vault this size and type is almost half the cost per sq. ft of a small gun safe.
