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Roof drains from Zurn include combination-primary overflow, control flow, dual outlet, siphonic, retrofit and more which cater from educational to commercial needs.
Our roof drainage guide explains roof drainage components and how they function to provide effective rainwater management to protect your building.
The overflow drainage system’s purpose is to drain water from the roof if the primary drains or scuppers become blocked so the roof structure doesn’t become overloaded by the weight of the water. Overloading can lead to deformation of the roof structure or even roof collapse.
Browse superior-quality roof drains with overflow from Thunderbird Products. All overflow roof drains made in the USA. Call Us to Place Your Order: (800) 658-2473
Roofs shall be designed for the maximum possible depth of water that will pond thereon as determined by the relative levels of roof deck and overflow weirs, scuppers, edges or serviceable drains in combination with the deflected structural elements.
Code approved OMG Hercules RetroDrains, the industry’s most popular retrofit roof drains, are available in 3-, 4-, 5- and 6-inch sizes and with a variety of options to support any project, including TPO or PVC coated flange for direct membrane attachment.
The combination roof and overflow drain consists of a cast iron roof and overflow drain with no-hub outlets.
Smith carefully designs and manufactures a full line of roof drains, deck drains, scupper drains, promenade and parking area drains and more to satisfy both the artistic eye of the architect and the calculating mind of the engineer.
Josam offers a complete line of roof drains which include Large Sump, Medium Sump, Small Sump, Sill Type, Promenade Top, Parapet Type, Flow Control Type, Overflow Type, Green Roof Drains, and miscellaneous roof drains and accessories and PVC body.
Roof Drains, Parts & Plumbing Accessories. Since 1989. Low Price Guarantee; Same Day Shipping on Most Orders