There are many different ways to create roof sumps as the following pictures show.
Roof sump with overflow revit.
If you are using two drains for your roof drainage the possibility of drains being installed at the wrong elevation doubles.
This drain can be used near to main primary drain for limited space installations.
Install drain and overflow fixtures side by side using one sump receiver.
Combined large sump siphonic roof drain with secondary overflow drain.
21500 roof drain large sump.
Control flo roof drainage system canadian.
Complete roof drain.
23500 roof drain large sump with 14in square promenade top.
Below you can find the different roof drains that wade us offers.
22010 roof drain medium sump.
Csi masterformat 2014 title.
Control flo roof drainage system.
Roof drain overflow.
As the two above photos show with two drains that the overflow drain can easily become a ponding problem also.
Used in flat roofs of any construction where a constant height of water is required.
Roof floor and paving drainage systems.
22080 roof drain small sump.
Combination main overflow drain commercial construction commercial multi family thin wall construction.
Acid neutralization tanks beeco fixture carriers.
Options and variations common roof drain accessories.
Csi masterformat 2014 code.
Roof floor and paving drainage systems.
Also used as a secondary drain emergency overflow draining water when the depth of the water on the roof exceeds the water dam height.
Z101 high capacity 20 diameter main roof drain.
Rd2150 replacement roof drain.
22100 combination roof drain.
For additional information on sizing and other specifications simply download the submittal sheets located underneath each product.
Combined large sump roof drain with secondary overflow.
Includes powder coated sump receiver roof drain and overflow fixtures.
Top set drain deck plate and deck riser installation instructions.
Enamel coated cast iron body gravel guard and dome strainer.