DITRA-DRAIN-STU is a self-adhesive tape designed to seam the cut edges of the DITRA-DRAIN membrane. The seaming tape provides a way to continue the filter fabric at the top of the membrane and allow for ventilation and drainage.

• Permanently effective passive capillary drainage system for exterior floor assemblies
• Nominal 5/32" (4 mm)-thickness minimizes tile assembly thickness
• Installed in exterior areas into thin bed mortar over a sloped waterproofing assembly or other suitable proprietary waterproofing systems
• Features a closed polyethylene foil with truncated conical studs and laminated filter webbing on one side
• DITRA-DRAIN-STU is 3 1/2" (90 mm)-wide