Battalion 3 was dispatched for a Structure Fire today to TBM Hardwoods. Captain 46-C arrived and reported smoke from the bag house. Constructor workers were in the process of removing the dust collection system which caused the dust bags and saw dust inside to catch fire. Crews knocked down the fire and protected the nearby structure. The construction crew continued to disassemble the bag house as we extinguished the smoldering fires. Battalion 3 worked the scene for 4 hours to completely extinguish the suborn fire.