WeldTec® Transition Tape makes it easy for installers to transition between distinct WeldTec waterproofing sheet membranes. WeldTec® Transition Tape offers welded joins from WeldTec undertile to WeldTec exposed and is specifically designed for situations where WeldTec undertile sheet membrane WPM 1000 intends to join to an external WeldTec membrane such as WPM 715. For example, a tiled external area leading out over a balustrade connecting with a roof section.