Portals Plus 65171 ABS Reroof Drain - 6 in. Alum Dome

The Portals Plus 65171 is an ABS rerofit-type roof drain insert designed for servicing existing drain openings during a reroof project. It features an aluminum dome and an expanding modified asphalt impregnated sealing tape that forms a permanent elastic watertight seal with the inside of the existing drain pipe. The unit has a flat flange underside for flush installation on the roof or insulation surface.

Key features:

• Retrofit drain insert designed to sleeve into an existing drain pipe to avoid removal of the previous assembly.
• Pre-compressed modified asphalt-impregnated expanding sealing tape creates an elastic watertight bond to the inside of the existing drain pipe.
• Flat horizontal flange allows flush mounting with the roofing or insulation surface to prevent water damming.
• Includes heavy cast clamping ring with four bolts to secure the new roof membrane at the most vulnerable low-point of the roof.

• SKU: 65171
• Model: ABS Reroof Drain – 6 in Aluminum Dome (unassembled)
• Dome type: Aluminum dome with cast clamping ring
• Seal system: Compressed asphalt-impregnated expanding seal activated by removing restraining tape
• Flange style: Flat, horizontal flange for flush mounting on roofing/insulation surface
• Includes: Cast clamping ring with four bolts, aluminum dome strainer
• Installation method: Completely installed from the rooftop with only a 7/16″ wrench required for clamping ring and dome bolts.

Q: Is the 65171 drain intended for new roofs or reroofing applications?
A: It is specifically designed for reroofing projects as a retrofit insert for existing drains.

Q: What tool is required to install the clamping ring and dome?
A: Only a 7/16-inch wrench is needed to tighten the clamping ring and secure the aluminum dome.

Q: How does the expanding seal tape work?
A: Once the restraining tape is removed, the pre-compressed asphalt-impregnated tape expands to form a watertight elastic seal against the existing pipe interior.

Q: How does the flat flange benefit drainage performance?
A: The flat flange allows the drain to sit flush with the roof surface, helping eliminate ponding and ensure smooth water flow.