I don't understand the code for a fire alarm system where a 4 unit building is being updated. Would the horns go in the common areas of the hallway? Or in each bedroom??
I'm currently renovating a quad (3 stories) in the Phila. area and wanted to know if i need sprinklers or pull stations and where or if smoke detectors suffice. Do the smoke detectors in all the apartments need to be linked through a centralized system?