The best is to have a wide scupper 12 or wider so leaves and debris will wash through the scupper instead of clogging it.
How to make a gutter scupper.
Gutters collect leaves and stop the flow of water.
Scuppers are a very effective way to channel water off a roof.
The scupper spout is soldered into the copper fascia and gravel stop.
The scupper and gravel stop flanges are nailed to the blocking.
The scupper may channel water off the roof into a conductor box with a downspout or a gutter or with overflow scuppers it may let the water run freely down the side of the building.
The drip edge of the fascia should extend over the back edge of the gutter by 1 minimum.
Scuppers can let the water drop off the roof to the ground or can lead into a gutter system.
Poorly maintained and malfunctioning roof drainage systems can cause water to be concentrated or directed to areas that you don t want like a lower level unit or.
In stead of using common elbows under this split copper gutter expansion joint i made this custom scupper or tray that narrows from 9 down to 5 wide at the house with a reducer installed at the back priced at 25 sq of 20oz copper used to make this.
The gutter should be allowed to move independently of the fascia gravel stop.