320
Ceiling: Other Design Criteria
327.4.1
Penetrations
Although access to the service zone is primarily horizontal, a reasonable
degree of vertical access must also be provided for convenience of
engineering personnel and for introduction of equipment. During
construction it must also be possible to leave out large areas of the
platform temporarily so that primary trunk ducts, etc., can be brought into
the service zone.
It must be easy to penetrate the ceiling to relocate or add service
distribution components. There should be as little restriction as possible in
the locations of these penetrations. When services are relocated, it
should be easy to patch unused openings.
327.4.2
Support of Adaptable Items
The platform should provide substantial backing for a variety of ceiling
finishes which can be applied, cleaned, repaired, removed or changed
without significant damage to the base material. It must also provide
support for a wide range of ceiling-mounted items such as cubicle tracks,
IV hangers, TV consoles, etc., in a manner allowing simple cutting and
drilling of holes as they are installed and patching when they are removed.
The ceiling framework should not place undue restrictions on the location
of partitions; ideally there would be no restrictions.
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