The designers and specifiers need to visit the jobsite, or at least follow up on the as built conditions. We had a job where I work that was new construction of a dairy milking parlor. The entire milking and processing area had to be tiled to meet the requirements for hot water(180 deg.)washdown. The engineer specified
smoke detectors in the exit corridors(tiled,of course). Ever try using a smoke detector in a shower?
We got permission to convert the wet locations to 200 deg ROR heat detectors. We also added raintight covers to the signalling devices.
