DG 1110-3-106
Table 4-20 Criteria for Restrooms.
Space Criteria
Area
Reference: Space Use
Ceiling Height
9 ft. minimum
Floor Loading
Reference: TM 5-809-1, Structural Design
Environmental
Thermal
Temperature, maintained operation
68F. (heating), 78F. (cooling)
Relative humidity
50-60%
Outside air required/person
2.5 cfm (minimum)
6 per hour (minimum)
Air changes
Air movement
40 cfm (maximum)
Air pressure
Negative
Air filtration efficiency
35% (minimum using NBS dust spot test)
Lighting
General lighting level
30 fc. (maintained)
Enclosing sound wall rating:
STC 45
Absorptive
Sound reflectance: Ceiling
Walls: Front
Reflective
Side
Reflective
Absorptive, NRC 25 (minimum)
Back
Floor
Absorptive, NRC 25 (minimum)
Service Criteria
Electrical
Power
110 V
Signal (low voltage)
Clock control as programmed
4-88
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