Knowing when your lawn requires power raking services in Southern Utah can help keep your grass healthy. Here are some signs to look out for: Excessive Thatch Buildup One of the main reasons to schedule power raking is when there is noticeable thatch accumulation. If you see a thick layer of dead grass or roots on the soil surface, it’s time for a power raking session. Typically, if the thatch layer is more than 1 inch thick, it can begin to impact the health of your lawn.