ceiling of the fireplace compartment. This concrete ceiling
should be sloped to drains located above each fireplace
Trench drains should be provided.
Maintenance Floor. The maintenance floor is used in
the electrical rooms and should be constructed of concrete with
Computer Floor. The computer floor is a raised
computer deck conforming to MIL-F-29046, Flooring Raised,
General Specification for. Twelve inches of clear space should
be provided under the decking. This flooring should be used in
the instructor's station(s). The adjacent electrical room does
not require a raised computer deck.
Grating Floors and Platforms. For grating floors and
platforms located outside, provide galvanized steel grating with
a non-skid surface. Grating should be hot-dipped galvanized,
open type, 25.4 mm by 4.7625 mm bars, welded with section
modulus of 5625 cu. mm, moment of inertia of 71,552 mm , and
maximum weight of 36.112 kg/sq. m.
Walls. Walls around training compartments should
resist thermal cycling from 538 degrees C in the fire area to
the coldest ambient temperature at the site, plus the effect of
cold water applied during the extinguishment of the fire. Walls
should not be porous because, in colder climates, the wetted
wall could be damaged when the water freezes. Walls should
withstand the mechanical stress of a stream of high-pressure
Wall System. Walls directly behind the cable raceway,
electrical panel, trash can, storage compartment, and dryer
fireplaces should not have columns in them and the crawl space
directly below should also be free of columns. Holes up to
0.18 sq. m will be cut through the walls in these areas by the
device contractor. Holes any larger will be structurally
reinforced by the device contractor.
In addition, walls surrounding fireplaces should be
lined with a steel panel. The panel and its supports should