PU (polyurethane) injection grouting otherwise known as PU grouting is a specialised expertise that involves the injection of expanding polyurethane to stop any water flowing down or through cracks or to fill voids under slabs, concrete joints or behind concrete walls and joints. This method is very useful and effective when used on the underside or negative side of the water seepage, for example, from the underside of the leaking walls or the lower floor ceiling for issues involving upper and lower floor neighbours or in inter-floor water leakages. The grout will expand to fully fill up the void, crack or space that is caused by the water damage. This PU injection can be used for concrete cracks or expansion joints that are actively leaking.
Cracks in concrete happen overtime due to environmental issues such as thermal movement, drying shrinkage and other causes like nearby construction works or renovation works. If its not severe, it will be a minor problem and they will cause no instant issues or problems. But after some time, these minor and small cracks often become bigger problems, where water damage causes structural problems including reduced structural integrity due to water seepage. Water leaks can cause significant structural damages, inconvenience, and trouble. Water leak is the main culprit for the early inception of corrosion and concrete deterioration in multi storey residential and commercial buildings. It is important that the waterproofing systems in basements, roofs and wet areas, such as bathrooms, shower rooms, balconies, is driven by ‘complete waterproofing system’ rather than the waterproofing membrane only. Water leakages in buildings result mainly due to inadequate construction design, inferior materials, poor workmanship and deterioration of building materials.
PU injection grouting is also one of the most effective and long lasting methods of correcting almost all kinds of water leakages. Not only is it a fast and affordable repair method, it also requires zero hacking to get your water leakage problems fixed.
With over 20 years of experience in the waterproofing industry. You can be rest assured that here at SWC Construction, we will be able to solve any of your waterproofing problems. If you notice that your house has a water leakage problem, do not hesitate to contact us for a non-obligatory consultation today!