The ventilation system used at the ridgeline.  Ridge Monitor is to be installed on the centerline of the Building. Ridge Monitor helps to remove smoke out of the industries, factories and make working environment more favorable. Ridge Monitor also depends on the eave height of the building. Ridge Monitor helps to increase the height of the building from the center by 3 to 4 feet. In Ridge Monitor, Crimping Sheet is to be installed at the top of the building.