• Constructed of .060" thick aluminum for durability and strength when exposed to rooftop foot traffic.
• Includes a 1" high, vertical face, notched in “V” fashion designed for drainage at every 2” O.C. with a 4" wide flange for interply flashing.
• Pre-fabricated design insures product uniformity and quality control.
• Retains the flow of Coal Tar Pitch during high temperatures and prevents gravel migration into the drain sump area.
• Assembly is quickly completed on the rooftop with the four stainless steel bolts provided using a 7/16" wrench.
• Available in standard 4' x 4' configuration which accommodates most drain sump details.
• Can be custom fabricated to meet specific project requirements. 

OlyFlow RetroDrains are designed to replace existing drains in reroofing applications. Installed from the roof surface, the OlyFlow RetroDrains 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.