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Scupper Thru-Wall RetroDrain

Designed for existing through-wall/side-wall or roof scupper drain pipes, the aluminum and stainless steel drain components provide durability and compatibility with single ply, BUR and modified bitumen roofing systems.

Scupper RetroDrains are available in 3-, 4-, 5- and 6-inch sizes and include a U-Flow mechanical seal.

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Features & Benefits

  • Pre-punched drain flange provides stable attachment to the wall and roof deck.
  • 0.060-in. thick drain strainer is easily secured to the scupper drain body with four stainless steel wing nuts and provides protection against rooftop debris.
  • Simple and easy installation saves time & labor.
  • U-Flow Seals exceed the ANSI/SPRI RD1 standard for back flow prevention.

Product Use

Scupper Thru-wall RetroDrains are designed to replace existing scupper drains in re-roofing applications and are engineered to be installed without removing the existing plumbing or fixture while providing a watertight connection to the roof system and the existing plumbing.

As with all building materials it is the responsibility of the installer to review its usage with a design professional to confirm safety, compatibility and acceptance with the roof cover manufacturer as well as local building codes.

Technical Data

Drain Body:.080-in. thick aluminum
Seal:U-Flow Seal
Flange:16-in. x 10-in. x 10-in.
Strainer Dome:.060-in. thick aluminum
Stem:10-in. length
Clamp Ring:.125-in. thick metal

Packaging Info

Cat. No.Size (in)Packaging QuantityWeight (lbs)
SCUPRD33Each32
SCUPRD44Each32
SCUPRD55Each32
SCUPRD66Each32