Good morning. There are many factors to be considered on this. Did you have a particular case in mind?
Some of the things to consider are use and occupancy, fire area, allowable height and area, seperated vs. non-seperated use, and many others.
Once in a while it is easy...there are certain types of occupancies that require sprinklers no matter what, such as group "H" (hazordous), or group "I" (institutional), and under the 2003, group "R" (residential...maening hotel/motel, etc...).
