Figure Number: 1800

1800Roof and Overflow Drain with Deck Plate

Eliminates the Need for Underdeck Clamps; Installs From Top of Roof Deck

Engineered to save installation costs, the roof and overflow drains of this unit are securely attached to a single deck plate. This permits both drains to be secured to the roof deck from above the roof, eliminates the need for an underdeck clamp, and requires only one roof penetration. The drains are constructed of Duco coated cast iron. The roof drain has a combined flashing clamp and gravel stop. The overflow drain is fitted with a combined flashing clamp and 2” water dam. Both drains are protected by polyethylene dome strainers.

Pro Tip: This combination roof drain and overflow drain is a great labor saver on flat roofs. The attached dual drain deck plate enables both drains to be secured to the roof deck from the top of the roof, eliminates the need for an underdeck clamp, and requires only one rectangular roof penetration—all helping to reduce installation time. Your customers will love it because the dual deck plate recesses the drains just enough to prevent water build-up at the base of the drains prolonging the lifeof their roof.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Learn More about this warning
Shows specifications for standard configuration. Configuration options may change specifications.
  • Variations
    L Speedi-Set® Service Weight - 02(50), 03(75), 04"(100) Sizes Only, LXH Speedi-Set® Extra Heavy., Expansion Joint (Specify Fig. 1710), Extension -E - (Specify Height), Secondary Flashing Clamp -C2 (For Extensions), Adjustable Extension -AE, External Waterdam Collar -WD Specify Height -WD2(50), -WD3(75), -WD4(100), Vandal Proof - Dome - U, (2) 3/8” (10) Tappings -TAP, 4" (100) Tall S.S. Perforated Gravel -GG04
  • Optional Materials
    Stainless Steel Mesh Over Dome -SSM, Aluminum Dome -AD, Cast Iron Dome -CID, Galvanized Cast Iron Dome -CIDG, Galvanized Cast Iron -G - Body & Collar, Rough Bronze Dome -RBD
  • Product Type
    Roof Drain
  • Benefit
    Labor Saving
Technical Drawings
1800 Roof Drain (dwg)Roof and Overflow Drain with Deck Plate [1800C | Caulk Bottom Outlet; 1800Y | No-Hub Bottom Outlet]DWG181 KB
1800 Roof Drain (rfa)Roof and Overflow Drain with Deck Plate [1800C | Caulk Bottom Outlet; 1800Y | No-Hub Bottom Outlet]RFA976 KB
Literature / Videos
Submittal 1801 Roof Drain (pdf)Roof Drain with Overflow and Deck Extension Plate [1801C | Caulk Bottom Outlet; 1801T | Threaded Bottom Outlet; 1801Y | No-Hub Bottom Outlet]PDF485 KB
Submittal 1800-AE Roof Drain (pdf)Roof and Overflow Drain with Deck Plate and Adjustable Extension [1800C-AE | Caulk Bottom Outlet; 1800Y-AE | No-Hub Bottom Outlet]PDF506 KB
Submittal 1800-E Roof Drain (pdf)Roof and Overflow Drain with Deck Plate and Extension [1800C-E | Caulk Bottom Outlet 1800Y-E | No-Hub Bottom Outlet] PDF582 KB
Specifications for Roof DrainsSpecifications for Roof DrainsDOC230 KB
Jay R. Smith Contractor Labor Savings and Prefabrication BrochureContractor Labor Saving Products Brochure (pdf)Contractor Labor Saving Products Brochure (pdf)PDF6 MB
MGI Corporate Brochure (pdf)Who we are, Our History, Morris Group International TodayPDF8 MB
MGI Brands Flyer (pdf)MGI Brands Flyer (pdf)PDF712 KB
1800 Roof Drain (hi res jpg)Roof and Overflow Drain with Deck Plate [1800C | Caulk Bottom Outlet; 1800Y | No-Hub Bottom Outlet]JPG29 KB
Technical Data for Roof DrainsTechnical Data for Roof DrainsPDF2 MB
Order Guidelines for Roof DrainsOrder Guidelines for Roof DrainsPDF120 KB
Quote Worksheet Smith Drainage SystemsQuote Worksheet Smith Drainage SystemsPDF36 KB
Can't find what you are looking for? Get in touch

Roof Drain and Overflow with Deck Plate
1800C | Caulk Bottom Outlet
1800T | Threaded Bottom Outlet
1800Y | No-Hub Bottom Outlet
[Submittal]

Roof Drain and Overflow with Deck Plate
Adjustable Extension

1800C-AE | Caulk Bottom Outlet
1800T-AE |  Threaded Bottom Outlet
1800Y-AE | No-Hub Bottom Outlet
[Submittal]

Roof and Overflow Drain with Deck Plate
Extension

1800C-E | Caulk Bottom Outlet
1800T-E | Threaded Bottom Outlet
1800Y-E | No-Hub Bottom Outlet
[Submittal]

Roof Drain and Overflow
Deck Extension Plate
1801C
| Caulk Bottom Outlet
1801T | Threaded Bottom Outlet
1801Y | No-Hub Bottom Outlet
[Submittal]