UFC 4-171-05
1 January 2005
with change 25 October 2006
face, with the two layers staggered, to provide a projected 4-1/2 in (115 mm) grid.
Ceilings must be a minimum of 8 in (205 mm) thick, with a minimum reinforcement of #4
(13 mm) reinforcing bars forming a grid such that no opening exceeds 96 sq in
(62,000 sq mm). Structural floors will be equivalent to ceiling requirements. Slabs on
grade will be 6 in (\ 153 /2/ mm) thick with #3 at \ 12" /2/ o.c. each way (#10 bars at
300 mm o.c. each way). Refer to AR 190-11, Chapter 4 and Appendix G, for additional
vault construction requirements, including securing rings for securing the weapons in
the racks. The structural documents must prominently display the following note:
"Concrete placement for arms vault walls and roof may not proceed until written security
certification and Contracting Officer approval is received. Certification can only proceed
after reinforcing steel is in place. The contractor shall provide the Contracting Officer a
two week notice, minimum, prior to concrete placement for the security inspection to
take place. Be aware that separate concrete placements for various portions of the vault
must have separate inspections. It is the Contracting Officer s responsibility to obtain
security certification from Army Reserve Security Specialists and/or the installation
Provost Marshal."
Figure 4-13
Armorer's Room and Arms Vault
4-2.11.3 A \ GSA approved Class 5-V /2/ vault door capable of swinging open 180
degrees, with a heavy duty doorstop, will be provided. Day gates, with a pass-through
capability for issuing weapons, may be provided if Tenants desire.
4-2.11.4 \ Provide for an intrusion detection system (IDS) (some installations the IDS
will be required as part of the contract, other places rough-in for the system is all that is
required)./2/ Provide floor anchors for weapons racks. An alarm control box will be
placed outside the caged areas, but inside the vault. Refer to AR 190-11 for security
criteria. Electrical power is to be provided through a non-fused 30 amp disconnect
switch, located in the arms vault, to a lockable 30 amp disconnect switch fused for 20
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