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Roof Drain Focuses on Improved Water Removal


5/16/2018

OMG Roofing Products has introduced a new line of retrofit roof drains called Hercules-Plus that features integrated vortex breaker technology. Vortex breaker technology helps improve drain performance by improving water removal off the roof.

Independent performance testing shows that Hercules-Plus RetroDrains provide up to 2.5 times greater flow capacity than original Hercules Drains without vortex breaker technology. Faster water flow off the roof also means that the drains get excessive weight off the roof faster.

“Ponding water weighs approximately five pounds per inch per square foot. That means one-inch of water covering 20-square feet on the roof weighs 2,000 pounds,” says Dan Genovese, product manager with OMG Roofing. “That’s an additional ton of live load added to the building’s roof, and not entirely uncommon given the number of extreme weather events we’ve seen in the past few years. The new Hercules-Plus RetroDrains can get that water – and excessive weight – off the roof faster.”

In addition, integrated vortex breaker technology greatly reduces the chugging effect that occurs when a vortex collapses, which can overload the plumbing system.

Hercules-Plus RetroDrains are available in four sizes: 3-, 4-, 5- and 6-inches, and with an optional TPO or PVC coated flange for direct membrane attachment. Strainer domes are made of heavy duty cast aluminum which will not rust for long life on the roof. In addition, the safety yellow powder coat makes the Hercules-Plus strainer domes highly visible to help minimize rooftop trip hazards.


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