Sarnadrain with U-Flow®

Sarnadrain with U-Flow® is a prefabricated and seamless heavy-duty aluminum drain unit, featuring a coated flange for direct hot air welding of Sarnafil® membranes.

  • The aluminum strainer dome provides strength and durability (plastic strainers also available), while the extra large flange, with welded metal clips for attachment of the dome, possesses a depressed sump to allow easy drainage of all water from the roof surface.
  • The extended vertical drop to the drain stem and the use of a ‘easy-to-install’ U-Flow® seal add flexibility and achieves watertight mechanical connections to existing PVC or cast iron pipes.