Greetings from ca usa eric.
Roofing scupper box to french drain.
Factors which affect proper roof drainage are deck slope drain size and placement of drains.
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.
Plus speedtite drains can be installed in minutes without any special tools helping to save time and labor.
The best is to have a wide scupper 12 or wider so leaves and debris will wash through the scupper instead of clogging it.
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.
Scuppers can let the water drop off the roof to the ground or can lead into a gutter system.
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.
Scuppers are a very effective way to channel water off a roof.