I
H. Criteria.
(2) For general guidance on interior design, see DG
Table 4-8 lists outline criteria for designing instructor
1110-3-122.
preparation areas.
Table 4-8 Criteria for Instructor Preparation Areas.
Space Criteria
Area/Student
Ceiling Height
Floor Loading (minimum)
Environmental
Thermal
Temperature, maintained operation
Relative humidity
Outside air required/person
Air changes
Air movement
Air pressure
Air filtration efficiency
Lighting
General lighting level
Task lighting level
Visual comfort probability
Surface reflectance: Ceiling
Walls
Floor
Daylighting
Window orientation
Enclosing sound wall rating:
STC 40
Between preparation spaces and corridors
STC 45
Between preparation spaces and classrooms
Absorptive, NRC 50 (min.)
Sound reflectance: Ceiling
Absorptive, NRC 25 (min.)
Floor
Service Criteria
Electrical
110 V
Power
Telephone/intercom clock control as programmed
Signal (low voltage)
Reference: paragraph 3-2g
Adaptability
4-50
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