770
Ceiling Performance Specifications: Performance Criteria
775.2.8
Adaptability
Adaptability of the ceiling is principally a question of access to, and
variable support of, other building components.
1. Access to the service zone will be primarily horizontal and will be
provided via building components other than the ceiling. Nevertheless,
a reasonable degree of vertical access through the ceiling shall be
provided for convenience of engineering personnel.
2. There will be no horizontal distribution of services within partitions; all
such distribution will occur above the ceiling. Distribution to service
containers within functional spaces will be routed vertically via ceiling
penetrations. Ceiling materials shall allow rapid and convenient
drilling, cutting and patching. Penetrations of distribution lines through
the ceiling will be sealed (by others) to preserve acoustic qualities.
3. The ceiling shall provide support for a wide range of ceiling-mounted
items such as cubicle tracks, I.V. hangers, TV consoles, etc., in a
manner allowing simple cutting and drilling of holes as they are
installed and patching when they are removed.
4. For purposes of relocating lighting fixtures, HVC terminals and the like,
the ceiling shall provide for convenient introduction of new openings
and closing off of unused openings.
5. Ceiling base and finish materials shall allow for simple partition head
attachment, and for relocation of partitions without major damage of
these materials.
6. The base ceiling surface shall provide substantial backing for
commonly used ceiling finishes which can be applied, cleaned,
repaired, removed or changed without significant damage to the base
material.
775.2.9
Compatibility
1. The ceiling shall be fitted around and fastened to columns and shear
walls in a manner allowing for construction tolerances of both ceiling
and structure while transferring all lateral loads developed in the ceiling
to the structure. Vertical loads will be transferred to the structure solely
through the hangers provided.
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