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.
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