I would like to bounce a code situation off of you all to see what your take is. I have two buildings on main street that are being renovated. Both buildings are going to be commercial on the first floor with residential on the second. Both have to be sprinklered. The question that is being asked is can the first floor be an NFPA 13 system then once it gets to the second floor residential turn into a NFPA 13D or NFPA 13R? Or does the entire building need to be NFPA13? I haven’t dealt with this situation before and with the Fire Marshal being out of the office, I am reaching out to others. If you don’t know but know someone who would, your help is appreciated. Thanks again for your efforts,