Roofing Accessories

RetroDrain^*
For Reroofing

RetroDrain^®

Johns Manville offers several RetroDrains specifically designed for use when reroofing an existing roof system with existing roof drains. RetroDrains are installed in the new system, with sleeves designed to tie into the existing drains, with patented mechanical compression seal to prevent back-up.

PC/PET RetroDrain

PC/PET RetroDrain replacement roof drains are manufactured from engineered resin co-polymer. The PC/PET is tough. It is consistently resistant to temperature extremes. The strainer dome installs with a snap fit. The ribbed clamping ring, with raised connection bosses, positions perfectly every time, while forming a watertight seal to the roof membrane. The one-piece molding of the RetroDrain body is designed to sit flush on the existing roof drain, thereby eliminating the need to remove the old drain. The integral U-Flow Seal ensures a watertight connection to the old drain pipe.

SuperDome^® RetroDrain

SuperDome RetroDrain has the same PC/PET one piece molded RetroDrain body. However, it is furnished with a cast aluminum strainer dome with screw-down lid which secures the drainage system against vandals while permitting access to authorized personnel. The strainer dome with integral clamping ring is connected to the RetroDrain body.

Included in all Johns Manville Roofing Systems Guarantees for total system responsibility.

*RetroDrain and SuperDome are registered trademarks of U-Flow Roof Drain Systems, Inc.