MIL-HDBK-1032/2
Section 6:
COLD STORAGE WAREHOUSE
Definition. Cold storage facilities are buildings designed and
6.1
constructed to provide preservation of the quality of perishable foods and
general supply materials requiring refrigeration. Such facilities will include
freeze and chill space, mechanical areas, and may contain inspection and
processing facilities. Refer to NAVFAC P-272, drawing 1404208, for typical
configurations. Section 6 provides additional specific criteria applicable to
cold storage.
6.2
Construction. Refer to Mechanical Engineering, Refrigeration
Systems for Cold Storage, NAVFAC DM-3.04, for criteria relating to the design,
installation, and operation of refrigeration systems not otherwise defined in
this handbook. Observe the following:
DOD Requirements. Comply with DOD 4270.1-M for building heat gain
6.2.1
maximums, equipment, and vapor barriers. Comply with requirements of Section
4 if storage of hazardous or flammable materials is required.
6.2.2
Construction Details. Refer to Appendix A for illustrations of
typical cold storage construction and insulation methods.
6.2.3
Doors/Windows. Fenestration is not permitted in storage areas. Use
security-type windows with wire glass in offices, equipment rooms, toilets,
and locker areas. Cold storage doors shall open from inside as well as
outside.
6.2.4
Floors. All finished floors shall be at one level to avoid the use
of steps or ramps. Floors of different rooms may have different insulation
thicknesses. Differences in insulation thicknesses shall be adjusted by the
level of the rough floor slabs. Provide under floor heating for slab-on-grade
floors as required by local conditions.
Floor Drains. Provide floors with drains to permit periodic
6.2.5
washdown and cleaning operations. Floor drains shall not be located in
storage aisles. The floor shall not slope toward drains. Floor flatness
requirements must be maintained.
6.2.6
Insulation. Insulate all refrigerated structures and the low
temperature piping and mechanical equipment. Insulation must have a flame-
spread rating of 75 or less or the entire panel must be Underwriters
Laboratory (UL) or Factory Mutual approved as a noncombustible building unit.
Insulation shall have a smoke developed rating of 100 or less. Refer to
NAVFAC DM-3.04 for criteria on insulation.
6.2.6.1
Cost of Insulation. In cold storage plants, the cost of insulation
of cold storage rooms constitutes a substantial part of the total cost of the
installation. Prepare an Economic Analysis in accordance with NAVFAC P-442 to
determine optimum insulation thickness for cold storage buildings.
85
Previous Page
