Overflow Drain - Standpipe Type

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Overflow Drain - Standpipe Type

Figure Number:  1070
Product Function:
Used in flat roofs of any construction where a constant height of water is desired on the roof. It is also used on conventional roofs as a safety overflow, which receives water only when the build-up is greater than the setting of the standpipe. Standpipe type water dam can be cut to achieve various water depths on the roof.

Regularly Furnished:
Duco Cast Iron Body, Flashing Clamp and Gravel Stop with Polyethylene Dome, and P.V.C. Standpipe.
Product Details
  • Product Type:  Roof Drain
Related Figure Numbers
  • 1070-E-W - With Specified Height Extension
  • 1070-SO - With Side Outlet
  • 1074 - Adjustable Top with Standpipe
  • 1070-RDP -

    With Top Mount Roof Deck Plate

  • 1074-RDP -

    Adjustable Top With Standpipe

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NameDescriptionFile Size
Specifications US Govt ComplianceItems complying with U.S. government specifications34 KBDownload
CSI Specifications for Roof DrainsCSI Specifications for Roof Drains230 KB
NameDescriptionFile Size
Parts Order Guide for Roof DrainsParts Order Guide for Roof Drains632 KBView

Optional Materials

  • Aluminum Dome -AD
  • Bronze Standpipe -BZS
  • Cast Iron Dome -CID
  • Cast Iron Standpipe -CIS
  • Galvanized Cast Iron -G - Body & Collar
  • Galvanized Cast Iron Dome -CIDG
  • Rough Bronze Dome -RBD


  • Adjustable Extension (Specify Fig. 1045)
  • Expansion Joint (Specify Fig. 1710)
  • Extension -E - (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.
  • Secondary Flashing Clamp -C2
  • Sump Receiver -R
  • Underdeck Clamp -C
  • Vandal Proof - Dome - U
  • T Threaded Outlet