Leader Heads are also known as Scupper Boxes, Conductor Heads, Leader Boxes, Collector Heads, Conductor Boxes, Collectors, Catch Basins and Scupper Box. Whichever name you choose to call them, they all serve to channel water.
Most often, when there is a scupper on a building, there will be a leaderhead used to catch the run-off water. Scuppers are used to provide an outlet through parapet walls or gravel stops on flat and built-up roofs to allow excess water to drain. It’s basically just a drainage hole. Under such a hole, a leader head would be placed to catch the water. The leader head is then attached to a downspout, which will drain the water to a desired location. This protects the side of the building from being damaged by the constant stream of water.
Leader Heads also serve as a catch basin located at the top of some leaders/downspouts attaching the gutter sleeve to the conductor pipe.
Earlier, gutters laid around the rooftops of homes were directed to flow into joints at suitable intervals where the water would flow in to a single outlet pipe. These joints called leader heads or conductor heads were the places where most of the leakages and blockages would occur. Repeated repair, sealing, and plugging, made them look ugly. The modern day leader heads or conductor heads have completely changed the look and functioning of these joints. There is a wide variety of leader heads available, made of wide ranging material, color, and designs. They also vary according to the size of the downward spout to which they are to be connected.
Although, the primary purpose of these leader heads is to channel water, these are also designed to match the aesthetics of a building. Many leader heads have side openings, which let air in to the drain and muffle the sound of water gushing through the pipe. The air inlet also prevents formation of vacuum inside the pipe leading to obstructed flow. Some may contain filters within them to prevent clogging of the spout. Leader heads improve the flow of water and some may receive overflows due to any obstruction to the flow of water in the downward spout. The leader head may be placed at a point where many gutters directly flow into, or where many of the smaller scuppers empty their content. They are usually placed under a soffit or an over hanging ledge. They provide enough space to hold a lot of water so that the rooftop is not flooded during thunderstorms.
Leader heads come in a wide variety of shapes, sizes, and materials. Leader heads are often thought of as luxury accessories. They can certainly be eye-catching ornamental structures that add value and appeal to your home. Choosing the right leader head can be compared to an artist applying the finishing touch to his creation.