Frank Pattern Side Outlet Roof Drain


  • Models are 852SN which has a 2″ pipe size, 853SN which has a 3″ pipe has a 3″ pipe size and  854SN which has a 4″ pipe size.
  • All of the roof drain models have a no-hub connection and have 100% cast iron components

Frank Pattern Side Outlet Roof Drain

Frank Pattern Side Outlet Flat Roof Drain
  • Frank Pattern single roof drain-side outlet
  • Each roof drain has an 8-1/2″ diameter bowl and are available in 2″- 4″ outlet, no-hub pipe sizes.
  • Each roof drain has a combination protective gravel stop/membrane clamp (flashing ring) which compresses to make a water tight seal.
  • Both drains have a corrosion resistant Duco coating.
  • Each roof drain has a dome or leaf grate that prevents debris from entering the roof drain.
  • 100% cast iron construction.
  • Frank Pattern roof drain detail

Frank Pattern roof drain upgrades

    • SUMP PAN:
      • add a sump pan to your roof drain and prevent standing rainwater on your flat roof
      • If you will be using plastic or steel pipe, it is recommended to use specialized couplings as they transition from cast iron (on the roof drain) to plastic or steel pipe.

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