Asphalt should be rolled on which side for best results?

When rolling asphalt, the ideal practice involves working on the hot side, specifically using a small overlap during the rolling process. Rolling on the hot side ensures that the asphalt remains pliable and workable, allowing for better compaction and reducing the risk of damaging the surface. When the asphalt is hot, it is easier for the roller to achieve uniform density and to eliminate air voids effectively, which is crucial for the longevity and integrity of the pavement.

Using a small overlap while rolling is beneficial because it minimizes the risk of leaving unrolled spots and ensures a uniform surface texture and density. This method promotes consistent compaction across the surface of the asphalt, important for preventing future issues like cracking or rutting.

In contrast, rolling on the cold side can lead to hardening and increased resistance, making it more difficult to achieve the desired compaction and potentially resulting in uneven surfaces. Large overlaps, regardless of the side, can also contribute to issues with irregularities in the surface finish or insufficient compaction, which may compromise the pavement’s performance.