Inner roof drains are used on flat roofs and include a low section or channel that collects water and feeds it into a concealed drain that leads to an underground drainage system.
Roof drain section.
Download free high quality cad drawings blocks and details of roof drains organized by masterformat.
22 13 19 13 sanitary drains.
The main benefit of inner drains is that the system is hidden from view.
Roof drains from zurn include combination primary overflow control flow dual outlet siphonic retrofit and more which cater from educational to commercial needs.
Inner drains are resistant to freezing but can require careful maintenance to prevent problems.