If you are considering using rubber mulch in your landscaping, you may be wondering if you need to put anything under it. The answer is that it depends on the application. Here are some things to consider when deciding whether or not to put something under rubber mulch:
1. If you are using rubber mulch in a garden bed, chances are good that you will not need to put anything under it. Garden beds typically have soil underneath them, so the rubber mulch will have something to grip onto. This helps keep the mulch in place and prevents it from being blown away by wind or washed away by rain.
2. If you are using rubber mulch around trees or shrubs, you may want to consider putting something under it. This is because the roots of these plants can grow up through the holes in the rubber mulch and lift it up over time. By putting something under the mulch (such as landscape fabric), you can help prevent this from happening and keep your tree or shrub roots healthy and protected.
3 . If you are using rubber mulch on a slope or hill, you definitely should put something under it! Otherwise, there is a risk of the mulch sliding down the slope during heavy rains or melting snowfalls. This can damage your landscaping and create an unsightly mess. Putting landscape fabric or another type of erosion control matting under the mulch will help hold it in place and prevent any unwanted movement.