Figure Number: 1015

1015Large General Purpose Roof Drains with Adjustable Extension

Easily Adjusts to Accommodate Variations in Insulation Depth

This general purpose drain is adjustable on-site to accommodate roofs of any construction between 1-1/4" (32) and 4" (100) thick with up to 2-3/4" (70) of insulation. The combination flange clamp and gravel stop of this 15-1/4" (390) diam. adjustable roof drain spins around a threaded extension sleeve to conform to varying roof thicknesses. The drain body and flange assembly are made of Duco coated cast iron. It is protected by a polyethylene dome strainer.

Pro Tip: Every bit of savings counts on a big job. When you choose an adjustable roof drain you eliminate the need to order multiple extensions in varying heights. Contractors appreciate the fact that this roof drain can accommodate the inevitable inconsistencies in roof insulation thickness. Simply spin the adjustable extension to fit insulation from 1-1/4 to 4 inches (32 to 102 mm) thickness.

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), L-Shaped Underdeck Clamp -CL, L Speedi-Set® Service Weight - 02(50), 03(75), 04"(100) Sizes Only, LXH Speedi-Set® Extra Heavy., Secondary Flashing Clamp -C2, Sump Receiver -R, Underdeck Clamp -C, Vandal Proof - Dome - U, Side Outlet Drain (Specify Fig. 1025), T Threaded Outlet, (2) 3/8” (10) Tappings -TAP, Roof Deck Plate -RDP
  • Optional Materials
    Aluminum Dome -AD, Cast Iron Dome -CID, Galvanized Cast Iron -G, Rough Bronze Dome -RBD
  • Product Type
    Roof Drain
  • Benefit
    Labor Saving
Technical Drawings
1015 Roof Drain (dwg)General Purpose Roof Drain with Adjustable Extension [1015C | Caulk Bottom Outlet; 1015Y | No-Hub Bottom Outlet]DWG56 KB
1015-08 Roof Drain (dwg)General Purpose Roof Drain Specifically for 8" Pipe Size with Adjustable Extension [1015C-16 | Caulk Bottom Outlet; 1015Y-16 | No-Hub Bottom Outlet]DWG338 KB
1015-39 Roof Drain (dwg)General Purpose Roof Drain with Adjustable Extension, Stainless Steel Mesh Secured to Dome [1015C-39 | Caulk Bottom Outlet; 1015Y-39 | No-Hub Bottom Outlet]DWG91 KB
1015-E Roof Drain (dwg)General Purpose Roof Drain with Specified Height Extension [1015C-E | Caulk Bottom Outlet; 1015Y-E | No-Hub Bottom Outlet]DWG105 KB
1015-RDP Roof Drain (dwg)General Purpose Roof Drain with Adjustable Extension, Deck Plate [1015C-RDP | Caulk Bottom Outlet; 1015Y-RDP | No-Hub Bottom Outlet]DWG65 KB
Canadian 1015-85 Roof Drain (dwg)General Purpose Roof Drain with Adjustable Extension, High Profile Cast Iron Dome with Weir Opening [1015C-85 | Caulk Bottom Outlet; 1015Y-85 | No-Hub Bottom Outlet] DWG503 KB
1015 Roof Drain (rfa)General Purpose Roof Drain with Adjustable Extension [1015C | Caulk Bottom Outlet; 1015Y | No-Hub Bottom Outlet]RFA448 KB
Literature / Videos
Submittal 1015-08 Roof Drain (pdf)General Purpose Roof Drain Specifically for 8" Pipe Size with Adjustable Extension [1015C-16 | Caulk Bottom Outlet; 1015Y-16 | No-Hub Bottom Outlet]PDF598 KB
Submittal 1015-39 Roof Drain (pdf)General Purpose Roof Drain with Adjustable Extension, Stainless Steel Mesh Secured to Dome [1015C-39 | Caulk Bottom Outlet; 1015Y-39 | No-Hub Bottom Outlet]PDF2 MB
Submittal 1015-E Roof Drain (pdf)General Purpose Roof Drain with Specified Height Extension [1015C-E | Caulk Bottom Outlet; 1015Y-E | No-Hub Bottom Outlet]PDF694 KB
Submittal 1015-RDP Support (pdf)General Purpose Roof Drain with Adjustable Extension, Deck Plate [1015C-RDP | Caulk Bottom Outlet; 1015Y-RDP | No-Hub Bottom Outlet]PDF729 KB
Submittal 1015-C2 Support (pdf)General Purpose Roof Drain with Adjustable Extension, Wide Flange Body, Threaded Ring Used as Secondary Flashing Clamp [1015C-C2 | Caulk Bottom Outlet; 1015Y-C2 | No-Hub Bottom Outlet; 1015T-C2 | Thread Bottom Outlet]PDF633 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
Specifications for Roof DrainsSpecifications for Roof DrainsDOC230 KB
1015 Roof Drain (hi res jpg)General Purpose Roof Drain with Adjustable Extension [1015C | Caulk Bottom Outlet; 1015Y | No-Hub Bottom Outlet] JPG52 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
Quote Worksheet Smith Drainage SystemsQuote Worksheet Smith Drainage SystemsPDF36 KB
Canadian Submittal 1015-85 Roof Drain (pdf)General Purpose Roof Drain with Adjustable Extension, High Profile Cast Iron Dome with Weir Opening [1015C-85 | Caulk Bottom Outlet; 1015Y-85 | No-Hub Bottom Outlet] PDF631 KB
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Large General Purpose Roof Drains with Adjustable Extension

Standard Variation [submittal]
1015C | Caulk Bottom Outlet
1015Y | No-Hub Bottom Outlet
1015T | Threaded Bottom Outlet

Drain with Stainless Steel Mesh Secured to Dome [submittal]
1015C-39 | Caulk Bottom Outlet
1015Y-39
| No-Hub Bottom Outlet
1015T-39 | Threaded Bottom Outlet


Drain with Specified Height Extension [submittal]
1015C-E | Caulk Bottom Outlet
1015Y-E | No-Hub Bottom Outlet
1015T-E | Threaded Bottom Outlet

Drain with Deck Plate [submittal]
1015C-RDP | Caulk Bottom Outlet
1015Y-RDP | No-Hub Bottom Outlet


Drain with Wide Flange Body, Threaded Ring Used as Secondary Flashing Clamp [submittal]
1015C-C2 | Caulk Bottom Outlet
1015Y-C2 | No-Hub Bottom Outlet
1015T-C2 | Thread Bottom Outlet

Drain Specifically for 8" Pipe Size with Adjustable Extension [submittal]
1015C-16 | Caulk Bottom Outlet
1015Y-16 | No-Hub Bottom Outlet
1015T-16 | Threaded Bottom Outlet


Drain Specifically for 8" Pipe Size with Adjustable Extension and Deck Plate [submittal]
1015C-16-RDP | Caulk Bottom Outlet
1015Y-16-RDP | No-Hub Bottom Outlet

Roof Drain with Adjustable Extension, High Profile Cast Iron Dome with Weir Opening [CANADIAN submittal]
1015C-85 | Caulk Bottom Outlet
1015Y-85 | No-Hub Bottom Outlet