Can the Pro Putt Turf Rolls be placed over an outdoor grass surface?

Yes, you can place our Pro Putt Turf Rolls over existing grass. If this is a temporary installation where you'd want to use the Pro Putt Turf Rolls as a putting green and then keep it away after use, placing these over grass would not be an issue. However, we do not recommend placing these directly over exiting grass, if you're looking for a more permanent installation since you may run into some problems, such as weeds growing into your turf also leveling issues. Using a weed barrier would help, but artificial turf performs best when installed on a clean and leveled surface.