The rolling pattern should be checked to verify that complete coverage and proper embedment are achieved. Rollers should cover both edges completely as well as the center of the lane. After the rollers have completed one section, the aggregate orientation should be visually evaluated. If the aggregate particles are lying in their flattest dimension, the rolling is adequate. If many of the aggregate particles are still situated upright, additional rolling should be required. The rolling operation should be monitored carefully to ensure that none of the roller operators stop and start too quickly causing scuffing on the fresh seal.