A burial vault is a sturdy box designed to protect the coffin inside of it. The body is placed within the coffin, which is then placed inside the vault. Body, coffin, and vault are buried. A burial vault serves as an outer enclosure for buried remains, the coffin serves as an inner enclosure.
Vaults are made of either concrete or metal. Unlike a burial liner, which only covers the top and sides of the coffin, a vault completely encloses a coffin. Burial vaults are primarily used to keep the weight of the ground from crushing a buried coffin, and also to keep the ground above from sinking in. Manufacturers also state that their vaults can be sealed to keep water and other elements out. In many cases, cemeteries require either a vault or liner to keep the ground over grave sites from sinking in. This gives the ground a neat and even appearance, and helps reduce the chance of a person tripping on sunken ground.
Even if a burialvault is not moved, it is possible that burial records identifying the deceased could be lost over time, thus making it necessary to access the remains within the vault in order to attempt to identify the deceased.
The vault 100 includes a lid 110 and a base 120 which may be made of concrete, plastic or other durable material able to withstand the pressure of soil and water when interred in the ground for a century or more.
The vault 100 is typically ceremoniously buried in the ground after the casket is enclosed in the vault.
Cemeteries require the casket to be enclosed within either a burialvault or grave liner.
By definition a burialvault is a lined and sealed unit that is specifically engineered to support the weight of the earth above the grave as well as the heavy equipment that passes over it.
Burialvaults are made to exceed cemetery requirements for strength and rigidity.