Ceilings. Ceiling design shall be consistent with requirements for
lighting, air conditioning, ventilation, cable tray layout, acoustical
treatment, and fire protection, as specified in the BESEP. Where raised
floors are used, 8 feet (2.44 meters(m)) is the minimum clear height above the
raised floor, and 10 feet (3.05 m) is preferred. In uninterruptible power
design factor, a clear height of more than 10 feet (3.05 m) may be required.
Finishes. Flame spread and smoke developed ratings for interior
finishes shall conform to MIL-HDBK-1008.
Operating Areas Housing Electronic Equipment. Floors shall be 1/8-
inch vinyl tile with a vinyl or rubber tile base. Walls shall be acoustic
panels. Ceilings in operational electronic spaces shall also be acoustic
Storage Spaces, Vaults, and Mechanical Equipment Rooms. Floors
shall be concrete with a dusted-on finish with hardener; floor hardener must
be used on all concrete floors in buildings housing electronic equipment. In
general, bases should not be used. Where required for protection of wall
finishes or for sanitation, however, vinyl or rubber bases shall be used.
Walls shall be exposed. Ceilings shall be of exposed concrete or
noncombustible, suspended construction.
Offices, Corridors, and Toilets. Finishes shall be as specified in
MIL-HDBK-1001/2, Materials and Building Components.
Other Spaces. In uninterruptible power supply spaces and emergency
generator rooms, floors shall be concrete with a dusted-on finish with
hardener. Bases shall not be used. In battery rooms, floors and bases shall
have an acid-resistant finish. Walls and ceilings shall be exposed.