Purpose Of Roof Overflow Drain

If a blockage occurs after the connection to the overflow drain the overflow is useless and defeats the purpose.

Purpose of roof overflow drain.

Roof drains from zurn include combination primary overflow control flow dual outlet siphonic retrofit and more which cater from educational to commercial needs. An overflow drain is also used in manufacturing plants and other commercial assembly operations. We have seen engineered drawings showing overflow drains connecting to the same storm line albeit further down the line but still on the same drain. By the 1997 edition of the upc section 1101 11 2 had been added that completely prescribed where and how secondary roof drainage was to be provided.

Where you have roof drains you are also required to have overflow drains. Combination main overflow drain commercial construction commercial multi family thin wall construction. The drain may be used to redirect water after it reaches a certain level or serve as a means of effectively maintaining a certain level of any type of liquid in place as part of the manufacturing process.