Erfert said arriving firefighters gained access to the building and found that a fire had been contained and mostly extinguished by an activated sprinkler head. Firefighters immediately began extinguishing some hot spots and ensured the fire was completely out. A small display case and some wooden dividers sustained damage. The building is being remodeled to open as a retail store. Lacquer finishing had been applied to wood panels during the work day. Oily rags not disposed of properly are suspected of causing the fire.