Leader head

Because the top of the funnel is open, air is constantly introduced into the system and water flows faster through the downspouts.

These elements, as are the other roof drainage system components, gutters, scuppers[3][4] or downspouts, have to be sized to perform well, according to the amount of precipitation that they are intended to help alleviate.

Leader heads can also receive water from scuppers, which are used predominantly through flat roofs’ parapets.

Over time they have been redesigned to fit stylistic building trends, their function has always remained a constant.

Today, leader heads are typically made of sheet metal materials such as copper, steel, aluminum, zinc or brass, or cast materials such as aluminum; historically they were made of lead, copper, or cast iron.