The joints in a concrete structure are the most vulnerable areas for leaking and cracking due to water penetrating them. In most structures, this leads to mold and fungus growth, and can affect the integrity of the structure. There are a variety of different waterstops available for construction joints, each with different strengths and weaknesses, which makes them appropriate for certain applications. Here’s some information on some of the most common.
PVC is used to waterproof construction joints by embedding it in both sides of the joint to create a physical barrier. A variety of widths, thicknesses, and sizes are available to suit almost any construction joint. The advantage of PVC waterstops is that they can be installed in virtually any conditions, including rainy and wet conditions. They also tend to last for a long time. The challenge comes in the actual install process. It takes time to correctly position the PVC to embed it in the joint, and during the concrete pour, it can easily become damaged.