Can I resurface my existing pavement?

Although there are multiple variables, the condition of the base is the most important factor in determining if your current pavement can be resurfaced. If base failure is evident, you probably should not consider an overlay. The only accurate way to make this determination is to have your pavement inspected by a trained professional.

Alligation (sometimes referred to as Alligatoring) describes cracks that resemble an alligator's back. Alligation is caused by failure in the subgrade, most likely due to water penetration. Because Alligation typically spreads, areas affected by it often must be removed, the subgrade re-compacted or reconstructed, and the asphalt replaced.

Asphalt settles in much the same way as a new home settles onto its base. The amount of settling puts a strain on the base and asphalt by expanding and contracting the asphalt, which sometimes leads to small cracking. Cracking can also be caused by factors such as asphalt shrinkage or a compromised subgrade. Any cracks exceeding 1/4 inch in width should be addressed, with the type of repair depending on the nature of the crack. If the crack is caused by settling of the base the cracks should be sealed. If the crack is caused by a defect in the subgrade (see "Alligation") the section of pavement will likely have to be repaired.