Roof Drains Or Scuffers

Scuppers will play one of two roles in a roof system.

Roof drains or scuffers.

In short a scupper is a detail that provides drainage to a roof system by allowing the water runoff from the roof to exit the roof through a metal edge parapet wall or through the deck into a downspout or leader not run through the interior of the building. Outer face and front lip 26ga galvanized steel with soldered seams. The full flow capacity of a drain is not realized until the water reaches approximately 2 5 inches above the inlet in a four inch drain and 3 5 inches in a six inch drain. Scuppers are roof drains on the edge of the roof.

Scuppers are commonly used on flat roofs that have a parapet or other type of perimeter barrier enclosing the roof. This is a small flat roof with a wide mouth scupper. This is the best type of scuppers because it has a wide opening to allow debris to wash off during a good rain. Scuppers are open holes or channels cut into the roof edge or parapet.

Aluminum retrofit roof drain with anti ponding membrane clamp insert seal connector vandal resistant aluminum flip top dome 4 heavy duty threaded anchoring studs submittal sheet 3270 scupper drain with angle grate. E there is at least one drain for each 900 m 2. They will either be a part of the primary drainage system or they will be a part of the secondary overflow drainage system a primary drainage system is designed to remove water from the roof as quickly as possible. The roof is sloped toward the scuppers and water simply drains out through the scuppers.

A roof scupper is a roof drainage system that provides drainage of a flat roof by allowing the water runoff from the roof to exit the roof through a metal edge parapet wall or through the deck into a downspout or leader. The factors which affect proper roof drainage are deck slope drain flashing size and placement of drains. This will never clog up with leaves. 3 where the height of the parapet is more than 150 mm or exceeds the height of the adjacent wall flashing a emergency roof overflows or scuppers described in clause 2 c shall be provided and b there shall be a minimum of two roof drains.

An overflow drainage system will be designed to function independently of the primary system to drain water from the roof. Scupper roof drains from zurn manufactures a variety of sizes and finishes.