Abstract: An apparatus and method for caulking a large surface area with a large caulking apparatus is provided. A caulking tank is mounted on a frame which is connected to a source of air and to a nozzle assembly. The caulking tank includes a lid, an air inlet, a pressure release vent and an outlet. A valve is operatively connected between the caulking tank and the air source, which is a compressor and an air tank, for opening and closing the air pathway. The caulking material is dispensed by opening the valve and allowing air to enter the caulking tank and force the caulking material through the opposite end of the tank where it communicates through a hose to a nozzle assembly. The nozzle is pivotally mounted to the frame and it contains an adjustment rod for adjusting the angle of the nozzle.