I’m looking to open another store in another state about two hours north from me. It is in a strip mall and is just an empty shell at the moment. It is an all steel and brick construction. The conduits running through feeding other units and house lighting and not fire caulked through the single layer of Sheetrock in other units. Will we be required to put a firewall all the way to the ceiling or is this considered a non combustible building? Thank you