Where can I find the requirements for marking fire protection piping within various occupancies? I have areas that are covered by all occupancy types, except for "high hazard".
I don't need to mark the pipes based on occupancy or by zone. The people in the safety department tell me I need to paint all of my sprinkler pipe red, whether it is in a warehouse or a residential building. The Safety people could not provide a reference for this. What is required to be marked? If using pipe labels, what is the frequency of marking? Please provide a reference.
I did a quick computer search of the NFPA standards/codes. Using the search terms "marking of pipe" or "pipe marking", I did not find anything that mentions a requirement to mark piping. This may be a specific requirement to the local building code, or a requirement of the insurance carrier.