Geotextile Fabric for Waterproofing  can be effective in preventing weeds from growing in certain situations. It acts as a barrier, blocking sunlight and preventing weed seeds from germinating and growing. However, its effectiveness depends on factors such as the type and thickness of the fabric, the installation method, and the specific weeds you're dealing with. While geotextile fabric can help suppress weeds, it's not always 100% effective, especially if weeds can find a way to grow through gaps or tears in the fabric. Additionally, over time, organic matter can accumulate on top of the fabric, providing a substrate for weed growth. So, while geotextile fabric can be a useful tool in weed control, it's often most effective when used in combination with other methods, such as mulching or chemical treatments.