One Piece Drain Sleeve
Drain Sleeve Inserts are used when the existing drain does not have a clamping ring assembly, or cannot be taken up, properly cleaned and incorporated into the new roofing system.
Note: Before beginning the re-roof project, thoroughly clean the existing drain. Do not allow debris to clog the drain pipe. The new Drain Sleeve Insert should be lower than the new roof system surface.
Install the field membrane over the drain. Cut a circle the size of the Drain Sleeve Pipe directly over the existing drain. Following the standard seaming procedure, clean the field membrane and Drain Sleeve Insert with Membrane Cleaner. Apply Rubber to Rubber Adhesive to the field membrane and the bottom of the drain inserts. After the adhesives have flashed off, apply a heavy bead of Water Cut-Off Mastic above each
After the Drain Sleeve Insert has been installed, using standard seaming procedures, install a “target patch” to extend 15.24cms on all sides, past the edge of the Drain Sleeve Insert. Cut the target hole 2.54cms larger than the strainer securing ring.