Strange Observations – Ceiling Penetrations

Continuing in a series of strange things that I have seen while consulting at hospitals…

This picture was taken in an electrical room. Where the conduits extend upwards and penetrate the suspended ceiling, the gaps around the conduits are too large.

Most surveyors will use the NFPA 80 maximum 1/8-inch gap rule fire door clearance to frames as a standard for the maximum gap around conduit penetrations, where the ceiling is required to act as a membrane for smoke detectors or sprinkler heads.

In situations like this, the easiest and best solution is to remove the suspended ceiling from the electrical room, and relocate the lights in the ceiling to the deck above.