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Figure Number: 1011-1019
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1011-1019IRMA Roof Drain Applications

These 15-1/4” (390) diam. drain assemblies are engineered for installation in flat roofs waterproofed using the Insulated Roof Membrane Assembly (IRMA) method. A 4” (100) high perforated stainless steel gravel stop that restricts crushed gravel commonly installed with IRMA roofs from entering drain lines is provided with each drain along with a polyethylene domes (for leaf debris). These Duco coated cast iron drains are available with several flange and clamp configurations for installation in roofs where built-up felt and asphalt waterproofing is installed.

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
    Expansion Joint (Specify Fig. 1710), Gravel Guard -GG (Specify Height), L-Shaped Underdeck Clamp -CL, L Speedi-Set® Service Weight - 02(50), 03(75), 04"(100) Sizes Only, LXH Speedi-Set® Extra Heavy., Sump Receiver -R, Underdeck Clamp -C, Vandal Proof - Dome - U, T Threaded Outlet, (2) 3/8” (10) Tappings -TAP, Roof Deck Plate -RDP
  • Optional Materials
    Aluminum Dome -AD, Cast Iron Dome -CID, Cast Iron Dome w/SS Mesh -CIDS, Galvanized Cast Iron -G - Body & Collar, Galvanized Cast Iron Dome -CIDG, Rough Bronze Dome -RBD
  • Product Type
    Roof Drain
SubmittalSubmittal 1011 Roof Drain (pdf)
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Technical Drawings
1011 Roof Drain (dwg)Roof Drain for IRMA Applications - 1/16" Thick 4" High Stainless Steel Perforated (3/8" Diameter Holes) Gravel Stop, Gravel Stop Surrounds Polyethylene Dome [1011C | Caulk Bottom Outlet; 1011Y | No-Hub Bottom Outlet; 1011T | Threaded Bottom Outlet]DWG407 KB
1017 Roof Drain (dwg)Roof Drain for IRMA Applications, Perforate Stainless Steel Extension [1017C | Caulk Bottom Outlet; 1017Y | No-Hub Bottom Outlet 1017T | Threaded Bottom Outlet]DWG374 KB
1018 Roof Drain (dwg)Roof Drain for IRMA Applications, Perforated Stainless Steel Extension, 20" Wide Flange Body [1018C | Caulk Bottom Outlet; 1018Y | No-Hub Bottom Outlet;1018T | Threaded Bottom Outlet]DWG497 KB
1019 Roof Drain (dwg)Roof Drain for IRMA Applications 1/16" Thick 4" High Stainless Steel Perforated (3/8" Diameter Holes) Gravel Stop, Gravel Stop Surrounds Polyethylene Dome, 20" Wide Flange Body [1019C | Caulk Bottom Outlet; 1019Y | No-Hub Bottom Outlet]DWG410 KB
1011 Roof Drain (rfa)Roof Drain for IRMA Applications - 1/16" Thick 4" High Stainless Steel Perforated (3/8" Diameter Holes) Gravel Stop, Gravel Stop Surrounds Polyethylene Dome [1011C | Caulk Bottom Outlet; 1011Y | No-Hub Bottom Outlet; 1011T | Threaded Bottom Outlet]RFA416 KB
1017 Roof Drain (rfa)Roof Drain for IRMA Applications, Perforate Stainless Steel Extension [1017C | Caulk Bottom Outlet; 1017Y | No-Hub Bottom Outlet 1017T | Threaded Bottom Outlet]RFA356 KB
1018 Roof Drain (rfa)Roof Drain for IRMA Applications, Perforated Stainless Steel Extension, 20" Wide Flange Body [1018C | Caulk Bottom Outlet; 1018Y | No-Hub Bottom Outlet;1018T | Threaded Bottom Outlet]RFA368 KB
Literature / Videos
Submittal 1017 Roof Drain (pdf)Roof Drain for IRMA Applications, Perforate Stainless Steel Extension [1017C | Caulk Bottom Outlet; 1017Y | No-Hub Bottom Outlet 1017T | Threaded Bottom Outlet]PDF2 MB
Submittal 1018 Roof Drain (pdf)Roof Drain for IRMA Applications, Perforated Stainless Steel Extension, 20" Wide Flange Body [1018C | Caulk Bottom Outlet; 1018Y | No-Hub Bottom Outlet;1018T | Threaded Bottom Outlet]PDF561 KB
Submittal 1019 Roof Drain (pdf)Roof Drain for IRMA Applications 1/16" Thick 4" High Stainless Steel Perforated (3/8" Diameter Holes) Gravel Stop, Gravel Stop Surrounds Polyethylene Dome, 20" Wide Flange Body [1019C | Caulk Bottom Outlet; 1019Y | No-Hub Bottom Outlet]PDF551 KB
Submittal 1027 Roof Drain (pdf)Roof Drain for IRMA Applications Perforate Stainless Steel Extension [1027C | Caulk Side Outlet; 1027T | Threaded Side Outlet]PDF788 KB
MGI Corporate Brochure (pdf)Who we are, Our History, Morris Group International TodayPDF8 MB
MGI Brands Flyer (pdf)MGI Brands Flyer (pdf)PDF712 KB
Specifications for Roof DrainsSpecifications for Roof DrainsDOC230 KB
1018 Roof Drain (hi res jpg)Roof Drain for IRMA Applications, Perforated Stainless Steel Extension, 20" Wide Flange Body [1018C | Caulk Bottom Outlet; 1018Y | No-Hub Bottom Outlet;1018T | Threaded Bottom Outlet]JPG44 KB
Technical Data for Roof DrainsTechnical Data for Roof DrainsPDF2 MB
Parts Order Guide for Roof DrainsParts Order Guide for Roof DrainsPDF5 MB
Order Guidelines for Roof DrainsOrder Guidelines for Roof DrainsPDF120 KB
Canadian Submittal 1011-83 Roof Drain (pdf)Raintrol® Drain for IRMA Flat or Sloped Roof Application with 8" (203 mm) Height Cast Iron Dome, Cone with Weir Opening, Gravel Guard, Combined Flashing Clamp and Gravel Stop, Bottom Outlet [1011-83C-CAN, 1011-83Y-CAN; 1011-83T-CAN]PDF534 KB
Canadian Submittal 1017-83 Roof Drain (pdf)Raintrol® Drain for IRMA Application with 5-1/4" (133 mm) Height Polyethylene Dome, Flow Control Weir, Perforated Extension and and Gravel Stop, Bottom Outlet [1017-83C | Caulked; 1017-83Y | No-Hub Outlet]PDF588 KB
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Roof Drain for IRMA Applications

1/16" Thick 4" High Stainless Steel Perforated (3/8" Diameter Holes) Gravel Stop, Gravel Stop Surrounds Polyethylene Dome [submittal]
1011C | Caulk Bottom Outlet
1011Y | No-Hub Bottom Outlet
1011T | Threaded Bottom Outlet

Perforate Stainless Steel Extension [submittal]
1017C | Caulk Bottom Outlet
1017Y | No-Hub Bottom Outlet
1017T | Threaded Bottom Outlet

Perforated Stainless Steel Extension, 20" Wide Flange Body [submittal]
1018C | Caulk Bottom Outlet
1018Y | No-Hub Bottom Outlet
1018T | Threaded Bottom Outlet

1/16" Thick 4" High Stainless Steel Perforated (3/8" Diameter Holes) Gravel Stop, Gravel Stop Surrounds Polyethylene Dome, 20" Wide Flange Body [submittal]
1019C | Caulk Bottom Outlet
1019Y | No-Hub Bottom Outlet

Perforated Stainless Steel Extention [submittal]
1027C | Caulk Side Outlet
1027T | Threaded Side Outlet

CANADIAN SUBMITTAL
Raintrol® Drain for IRMA Flat or Sloped Roof Application with 8" (203 mm) Height Cast Iron Dome, Cone with Weir Opening, Gravel Guard, Combined Flashing Clamp and Gravel Stop, Bottom Outlet [submittal]
1011-83C-CAN | Caulk Outlet
1011-83Y-CAN | No-Hub Outlet
1011-83T-CAN | Threaded Outlet

CANADIAN SUBMITTAL
Raintrol® Drain for IRMA Application with 5-1/4" (133 mm) Height Polyethylene Dome, Flow Control Weir, Perforated Extension and and Gravel Stop, Bottom Outlet [submittal]
1017-83C | Caulked Bottom Outlet
1017-83Y | No-Hub Bottom Outlet