22 13 19 13 sanitary drains.
Roof drain section.
The main benefit of inner drains is that the system is hidden from view.
Inner drains are resistant to freezing but can require careful maintenance to prevent problems.
P 1503 4 1 secondary emergency overflow drains or scuppers.
Roof drains from zurn include combination primary overflow control flow dual outlet siphonic retrofit and more which cater from educational to commercial needs.
Browse companies that make roof drains and view and download their free cad details revit bim files specifications and other content relating to roof drains as well as other product information formated for the architectural community.