The full flow capacity of a drain is not realized until the water reaches approximately 2 5 above the inlet in a four inch drain and 3 5 in a six inch drain.
Roofing scupper box to french drain.
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.
Factors which affect proper roof drainage are deck slope drain size and placement of drains.
Scuppers can let the water drop off the roof to the ground or can lead into a gutter system.
Greetings from ca usa eric.
When it comes to roof drainage getting water off the roof is the name of the game.
Sealing the most critical part of your roof the draining area scupper hope you like it guys.
Gutters scuppers and roof drains oh my a well designed and functioning roof drainage system is essential to the long term integrity of your properties and their surroundings.
The best is to have a wide scupper 12 or wider so leaves and debris will wash through the scupper instead of clogging it.