Continuing in a series of strange things I have seen while consulting at hospitals…
I used to work in the construction trades. I like to think that workers in the construction trades know better than to do something silly like this.
The sprinkler pipe is suspended from the frame-work for the overhead door. All sprinkler pipe has to be suspended from the building structure.
Oh well…. I seem to remember I didn’t know how to install a fire damper properly for a long time.
Keep an eye on those construction people… they don’t always know what the code and standards require.