The O-Ring RetroDrain is designed for use in existing drain leaders smaller than 3-inces and larger than 6-inches. The drain features an aluminum body with an extra large flange for positive attachment of the roof flashing membrane and four rubber O-rings to make a watertight seal. It’s available with either a U-Flow cast aluminum strainer dome and cast aluminum clamping ring, cast aluminum SuperDome, plastic dome or a RAC aluminum strainer dome. The most common sizes are the 2-in. and 8-in., but other sizes available on a custom made basis.
OlyFlow RetroDrains are designed to replace existing drains in re-roofing 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.
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