Waterstop is a special profiled strips, which are used in concrete, they laid the body of the concrete and is designed for waterproofing of working and deformation, temperature, and expansion joints. Waterstop come in different shapes, widths and styles, and are made of PVC or TPE material. The use of waterstops during installation of the reinforcement cage, today, is inexpensive, but high-quality waterproofing, which performs its functions throughout the lifetime of the building.