720
Design Rationale: Ceiling
The recommended heights were determined on the basis of an analysis of
the functional space requirements.
Limited areas which may have requirements for heights greater than those
recommended should be located on the ground floor or in the basement
where the extra height can be obtained by depressing the floor level. The
alternatives are either to raise the height of a total floor or to raise the
platform over a limited area. The former alternative is the most costly, and
the latter would interfere with service distribution organization. (See
Section 224.)
722.4
CEILING LIGHTING FIXTURES ARE SURFACE MOUNTED
The Prototype Design does not incorporate integrated lighting-ceiling
systems. To be effective, these systems require:
1. A rigid planning module that imposes a strict discipline on partitions, as
well as lighting and ceiling components.
2. Overall lighting intensities that can be averaged out. For example, the
patient bedroom would be averaged out at about 30 foot-candles.
3. Standardization of fixture sizes to allow for interchangeability.
The variability of the lighting performance required throughout the hospital
precludes this type of system as a standard design though it is possible to
use it in limited areas. (See Section 322.2.3.)
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