is mad that it is being built?
Cast iron. It s a drain pipe so if there s lead in the joints (it s possible), it isn t getting into your drinking water.
A fire sprinkler system and a fire alarm system are two different animals. Codes requiring them vary from one location to another. You need to ask this question of the authority having jurisdiction, often the fire official. A code might not require either under some circumstances, but require one under others. For example the building might be small, and require none. The retail space might be in a high rise building and require both.
