Figure Number: 1002

1002Universal Membrane Clamping Collar Assembly

Designed for retrofit or replacement on existing roof drains, the bolting lugs of this dome and collar assembly match the bolt patterns of most common 15" (381) and 16" (406) diam. roof drain bodies with bolt circles of diameters between 7-1/4” (185) and 10-3/4” (275). This Duco coated cast iron collar generally conforms to the surface angle of the existing drain’s flange allowing adequate pressure on waterproofing membranes to ensure watertight installation. (It is recommended that roof membranes are extended into the drain’s sump.) Mounting hardware is included.

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Shows specifications for standard configuration. Configuration options may change specifications.
  • Variations
    Perforated Stainless Steel Gravel Guard (Specify Height), Solid Water Dam Collar -WD (Specify Height), Vandal Proof - Dome - U, (2) 3/8” (10) Tappings -TAP
  • Optional Materials
    Galvanized Cast Iron Collar -CG
  • Product Type
    Roof Drain
Technical Drawings
DWG 1002 Roof DrainDWG 1002 Roof DrainDWG53 KB
Literature / Videos
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
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
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